nik_control_reports_pl: NIK state-audit control reports (4,576 docs / 305M chars)

artifacts/source_findings.md

@@ -2412,3 +2412,32 @@ decisions (every speech scoring 0.3 or more, byte-identical).
 **Not established** — the hand checks in the card still date from Hub PR 76. The 573 rows whose
 speaker no allowlist rule matches stay here until the allowlist is applied to this source
 (slayerlabs/polish-dynaword-v2#99).
+
+## nik_control_reports_pl (NIK control reports, Najwyższa Izba Kontroli)
+
+- **Investigated** — 2026-10-09/10. 4,621 documents from 2,962 controls (2005–2026) fetched
+  first-hand from nik.gov.pl (report PDFs, text layer via pypdf; the results listing is a JS
+  pager, so the inventory sweeps the official record numbers P|D|I/RR/NNN).
+- **Verdict** — admit with `release: None`. Basis: official documents outside copyright,
+  Copyright Act art. 4 pkt 2 (verbatim quote + hash in the evidence file); Open Data Act
+  (Dz.U. 2023 poz. 1524) as supporting context (I). No CC grant asserted (fail-closed).
+- **What was checked** — chain of title (authors = NIK officials acting officially; publisher
+  NIK; no intermediaries — no snapshot involved); stratified recorded-seed sample (20261010)
+  of 220/4,621 documents over control-prefix strata: quote spans 40+ chars in 184/220
+  (Wilson 95% 78.2–87.9%), third-party citation references 104/220 (40.8–53.9%), persons'
+  names as published 132/220 (53.4–66.2%), identifier residuals 0/220 (0–1.7%); quote spans
+  cover 59.7% of sampled characters (regex, I). Cleaning (dehyphenation, page furniture,
+  frequency-detected boilerplate with calibrated thresholds, identifier redaction) lives in
+  `src/clean_nik_control_reports_pl.py` with contract tests.
+- **Caveat** — reports quote party letters, audited-entity documents and cited rulings at
+  length; whether art. 4 pkt 2 clears works quoted inside an official document is an open
+  legal question (as for uodo_orzeczenia_pl). Documents are not filtered.
+- **Not checked** — art. 4 coverage of inner quotes (open); scanned annexes without a text
+  layer (absent from the shard, count unknown); year-precision dates; nik.gov.pl terms of
+  use and robots.txt; whether art. 4 reads identically in consolidations later than
+  Dz.U. 2000 poz. 904 (I: unchanged); NERGAL not run (pattern-level redaction only —
+  `release: None` until re-run); whether every redacted 11-digit number was a PESEL (I).
+- **Cross-note for the maintainer** — `uodo_orzeczenia_pl.license-evidence.json` cites
+  "Dz.U. 1994 nr 24 poz. 83" and `eli.gov.pl/api/acts/DU/2025/24` for art. 4 pkt 2; that
+  citation looks wrong (the act is Dz.U. 1994 Nr 43 poz. 175; the linked PDF is the 2025
+  amending act and contains no such provision). Worth fixing in the UODO PR before release.

data/nik_control_reports_pl/nik_control_reports_pl.license-evidence.json

@@ -0,0 +1,76 @@
+{
+  "source": "nik_control_reports_pl",
+  "checked_at": "2026-10-10",
+  "license": "public-domain (official documents)",
+  "spdx": "LicenseRef-Polish-Official-Documents",
+  "license_spdx": "LicenseRef-Polish-Official-Documents",
+  "status": "documented-statutory-basis-review-needed",
+  "evidence_url": "https://eli.gov.pl/api/acts/DU/2000/904/text/O/D20000904.pdf",
+  "sha256": "438ecdbfb23b6c9d9f07a709217ea71fb13d6c88a44a2b4ccbb9ad4da4099939",
+  "provider": "Najwyzsza Izba Kontroli (NIK, Supreme Audit Office) - nik.gov.pl. Control reports ('Informacja o wynikach kontroli', wystapienia pokontrolne, protokoly and their attachments) are issued by NIK officers and the Kolegium NIK acting officially and published by NIK as official documents.",
+  "official_source": "https://www.nik.gov.pl/kontrole/wyniki-kontroli-nik/",
+  "official_source_documentation": "https://www.nik.gov.pl/o-nik/informacje-podstawowe/",
+  "review_scope": "Licence basis and third-party quotation sampling over 4,621 documents extracted from the published report PDFs of 2,962 controls (2005-2026), fetched first-hand from nik.gov.pl on 2026-10-09/10 (official record-number sweep P|D|I/RR/NNN over public detail pages, because the results listing is a JS pager). V = read first-hand on the retrieval date; I = inferred, not verified, not lawyer-signed-off.",
+  "finding": "The texts are official documents outside copyright under Polish Copyright Act art. 4 pkt 2, the same basis recorded for dziennik_ustaw, sejm_interpellations and uodo_orzeczenia_pl; reuse of public-sector information is governed by the Polish Open Data Act arts. 2(12), 5, 14 and 17 (I: not re-verified that NIK is an obliged body; no explicit licence grant exists on nik.gov.pl - fail-closed: no CC grant is asserted). Caveats. (1) Quoted third-party text inside official documents: reports quote party letters, audited-entity documents and cited rulings at length. In a stratified recorded-seed sample of 220 documents (seed 20261010, strata = control-number prefix), 184/220 contain quote spans of 40+ characters (Wilson 95%: 78.2%-87.9%) and 104/220 reference third-party correspondence or cited rulings (Wilson 95%: 40.8%-53.9%); quote spans cover 59.7% of sampled characters (regex measure, I-level - unbalanced quote marks can extend a span). Whether art. 4 pkt 2 clears works quoted inside an official document is an open legal question (as for uodo_orzeczenia_pl); documents are not filtered. (2) Names of natural persons appear as published in official documents (132/220 sampled documents, Wilson 95%: 53.4%-66.2%); officers and audited-entity personnel acting officially stay in text per repo policy. (3) Pattern-level identifier redaction only (PESEL, bank accounts -> [PII]: 146 + 3 hits over the shard); 0/220 residual identifiers in the post-cleaning sample (Wilson 95%: 0%-1.7%). SlayerLab/NERGAL has not run; the source merges with release: None until it does.",
+  "copyright_basis": {
+    "mark": "V",
+    "act": "Ustawa z dnia 4 lutego 1994 r. o prawie autorskich i prawach pokrewnych (Dz.U. 1994 Nr 43 poz. 175), art. 4 pkt 2 (text as published in the consolidated text, Dz.U. 2000 Nr 80 poz. 904): 'Nie stanowia przedmiotu prawa autorskiego: (...) 2) urzadowe dokumenty, materialy, znaki i symbole'.",
+    "verbatim_quote_repaired": "Art. 4. Nie stanowią przedmiotu prawa autorskiego: 1) akty normatywne lub ich urzędowe projekty, 2) urzędowe dokumenty, materiały, znaki i symbole, 3) opublikowane opisy patentowe lub ochronne, 4) proste informacje prasowe.",
+    "quote_note": "V, read first-hand on 2026-10-10 from the consolidated-text PDF at evidence_url (Dz.U. 2000 Nr 80 poz. 904, attachment to the MKiDN notice of 2000-08-01). The PDF text layer has font-encoding damage (ł -> ∏, ż -> ˝/´, ą -> à); the hash in 'sha256' is over the RAW extracted segment (reproducible with pypdf), the repaired reading above fixes only those glyph mappings. That art. 4 pkt 2 still reads identically in later consolidated texts is I (no later consolidated text re-read; ISAP redirect loops from this machine).",
+    "url": "https://eli.gov.pl/api/acts/DU/2000/904/text/O/D20000904.pdf",
+    "citation_correction_note": "The uodo_orzeczenia_pl evidence file cites 'Dz.U. 1994 nr 24 poz. 83' and the URL eli.gov.pl/api/acts/DU/2025/24 (the 2025 amending act) for this provision; both look wrong (the act is Dz.U. 1994 Nr 43 poz. 175 and the linked PDF does not contain art. 4 of the Copyright Act). Flagged for the maintainer; this file cites what was verified here."
+  },
+  "open_data_basis": {
+    "mark": "I",
+    "act": "Ustawa o otwartych danych i ponownym wykorzystywaniu informacji sektora publicznego (Dz.U. 2023 poz. 1524), arts. 2(12), 5, 14, 17.",
+    "url": "https://eli.gov.pl/api/acts/DU/2023/1524/text.html",
+    "note": "Supporting context only; the statutory basis for official documents carries the verdict. No primary source naming NIK as an obliged body was re-read."
+  },
+  "chain_of_title": [
+    {"hop": "author", "party": "NIK officers and Kolegium NIK acting officially", "statement": "reports are issued as 'Informacja o wynikach kontroli' / 'Wystapienie pokontrolne' over the officer's or President's signature (V: seen on the fetched document pages)", "url": "https://www.nik.gov.pl/kontrole/wyniki-kontroli-nik/", "retrieved": "2026-10-09", "sha256_or_snapshot": "per-document PDFs hashed in the fetch inventory (inventory.jsonl.gz kept locally)"},
+    {"hop": "publisher", "party": "Najwyzsza Izba Kontroli (nik.gov.pl)", "statement": "published free of charge on the public results site; no per-document licence field exists (V: page read 2026-10-09)", "url": "https://www.nik.gov.pl/kontrole/wyniki-kontroli-nik/", "retrieved": "2026-10-09", "sha256_or_snapshot": null},
+    {"hop": "intermediary", "party": "none", "statement": "fetched first-hand from the publisher; no snapshot, dump or third-party copy involved", "url": null, "retrieved": null, "sha256_or_snapshot": null}
+  ],
+  "sampling": {
+    "mark": "V",
+    "method": "stratified uniform random sample without replacement; strata = control-number prefix of record_id (P, I, K, S, R)",
+    "seed": 20261010,
+    "population": 4621,
+    "sample_n": 220,
+    "strata": {"P": {"population": 3340, "sample_n": 60}, "I": {"population": 481, "sample_n": 40}, "K": {"population": 385, "sample_n": 40}, "R": {"population": 233, "sample_n": 40}, "S": {"population": 182, "sample_n": 40}},
+    "checks": {
+      "quote_spans_40plus_chars": {"hits": 184, "wilson_95": [0.782, 0.879]},
+      "third_party_citation_refs": {"hits": 104, "wilson_95": [0.408, 0.539]},
+      "named_person_pan_pani_pattern": {"hits": 132, "wilson_95": [0.534, 0.662]},
+      "pesel_or_account_residual": {"hits": 0, "wilson_95": [0.0, 0.017]}
+    },
+    "flagged_char_share": 0.5971,
+    "interpretation": "Quote-heavy register is a property of the source (reports quote party letters, audited-entity documents and cited rulings by design), not an extraction defect; the 0/220 identifier residual still allows up to ~1.7% of documents (Wilson 95%), so this is a result, not a clean bill. Per-item classes and IDs: data/nik_control_reports_pl/nik_control_reports_pl.sampling.json (classification I-level regex heuristics; 12 documents hand-read on 2026-10-10 matched their heuristic class - those 12 are V)."
+  },
+  "not_checked": [
+    "Whether art. 4 pkt 2 covers third-party works quoted inside the reports (open legal question; documents are not filtered).",
+    "Scanned annexes without a PDF text layer (pypdf extraction empty) are not in the shard; how many exist is unknown.",
+    "Publication dates are kept at year precision (full dates appeared only on listing pages, not in the PDFs).",
+    "nik.gov.pl terms of use and robots.txt were not read (documents are published free of charge; fetching was polite: 3 workers, 0.15 s delay).",
+    "Whether art. 4 pkt 2 wording is unchanged in consolidations later than Dz.U. 2000 poz. 904 (I: unchanged; no later consolidated text re-read).",
+    "SlayerLab/NERGAL has not run over this shard (pattern-level redaction only); the source is not admitted to a release until it does.",
+    "Whether every redacted 11-digit number was in fact a PESEL (regex-based redaction is I-level)."
+  ],
+  "quotes": [
+    {
+      "mark": "V",
+      "url": "https://eli.gov.pl/api/acts/DU/2000/904/text/O/D20000904.pdf",
+      "text": "Art. 4. Nie stanowią przedmiotu prawa autorskiego: 1) akty normatywne lub ich urzędowe projekty, 2) urzędowe dokumenty, materiały, znaki i symbole, 3) opublikowane opisy patentowe lub ochronne, 4) proste informacje prasowe. (repaired reading of the raw segment hashed above)"
+    },
+    {
+      "mark": "V",
+      "url": "https://www.nik.gov.pl/kontrole/P/14/018",
+      "text": "Zarządu PGE Elektrownia Opole S.A. nr 140/2008 z dnia 14 kwietnia 2008 r. i nr 239/2008 z dnia 2 czerwca 2008 r. (a cited company document reference inside the report - quoted third-party material of the kind the sampling measures)"
+    },
+    {
+      "mark": "V",
+      "url": "https://www.nik.gov.pl/kontrole/I/25/001",
+      "text": "Wystąpienie pokontrolne zmienione zgodnie z treścią uchwały nr 88/2026 Kolegium Najwyższej Izby Kontroli z dnia 30 września 2026 r. oraz w związku z sprostowaniem oczywistych omyłek pisarskich (typowy nagłówek dokumentu urzędowego NIK)"
+    }
+  ]
+}

data/nik_control_reports_pl/nik_control_reports_pl.md

@@ -0,0 +1,112 @@
+# nik_control_reports_pl — NIK control reports (Najwyższa Izba Kontroli)
+
+Added: 2026-10-10. Release: `None` (on main, not in any release yet).
+
+## What the data is
+
+State-audit reports of the Supreme Audit Office (Najwyższa Izba Kontroli, NIK):
+the published "Informacja o wynikach kontroli", wystąpienia pokontrolne, protokoły
+and their annexes — analytical Polish prose (audit findings, legal reasoning,
+statistical tables rendered as text) plus quoted source documents. 4,621 documents
+from 2,962 controls, 2005–2026 (created at year precision), 309,053,905 characters.
+Register: formal administrative/analytical; genre: official control documents.
+Not OCR: the text is the PDF text layer of born-digital publications (pypdf);
+scanned annexes without a text layer are not in the shard (see Not checked).
+
+## Where it comes from
+
+First-hand from the publisher: <https://www.nik.gov.pl/kontrole/wyniki-kontroli-nik/>.
+The public results listing is a JS pager (every `/strona,N` URL returns page 1;
+no sitemap), so `src/fetch_nik_control_reports_pl.py` sweeps the official record
+numbers (Nr ewidencyjny `P|D|I/RR/NNN`, 2004–2026, 10 prefixes, gap-tolerant
+blocks journaled to `inventory.done`) over public detail pages, then downloads
+each report PDF ("Informacja o wynikach kontroli" and attachments) and extracts
+its text layer with pypdf. No intermediary snapshot, no dump, no third-party copy.
+
+## Rights
+
+- **Licence/basis**: official documents outside copyright under the Polish
+  Copyright Act art. 4 pkt 2 ("urzędowe dokumenty, materiały, znaki i symbole");
+  the same basis recorded for `dziennik_ustaw`, `sejm_interpellations`,
+  `uodo_orzeczenia_pl`. Reuse of public-sector information is governed by the
+  Polish Open Data Act (Dz.U. 2023 poz. 1524) arts. 2(12), 5, 14, 17 (I).
+- **Where the statement lives**: the statute, not the site — nik.gov.pl publishes
+  no per-document licence field (V, page read 2026-10-09). Provision quoted
+  verbatim + hashed in
+  `nik_control_reports_pl.license-evidence.json` (consolidated text Dz.U. 2000
+  Nr 80 poz. 904, <https://eli.gov.pl/api/acts/DU/2000/904/text/O/D20000904.pdf>).
+  Fail-closed: no CC grant is asserted anywhere.
+- **Chain of title**: authors = NIK officers / Kolegium NIK acting officially →
+  publisher NIK (nik.gov.pl) → this repo; no intermediaries (full table in the
+  evidence file).
+- **Third-party text inside the reports** (the material caveat): reports quote
+  party letters, audited-entity documents and cited rulings at length. Recorded
+  seed 20261010, stratified sample of 220/4,621 documents (strata = control
+  prefix): quote spans 40+ chars in 184/220 (Wilson 95% 78.2–87.9%), third-party
+  citation references 104/220 (40.8–53.9%), quote spans cover 59.7% of sampled
+  characters (regex measure, I). Whether art. 4 pkt 2 clears works quoted inside
+  an official document is an open legal question; documents are **not filtered**.
+  Per-item classes and IDs: `nik_control_reports_pl.sampling.json`.
+- **Persons and identifiers**: names of natural persons stay as published in
+  official documents (132/220 sample documents contain Pan/Pani + name patterns);
+  pattern-level redaction of identifiers only — PESEL and bank accounts become
+  `[PII]` (146 + 3 hits over the shard; 0/220 residual in the sample, Wilson 95%
+  0–1.7%). **Scrubber: pattern-level only; SlayerLab/NERGAL has not run.** The
+  source merges with `release: None` and is not admitted to a release until its
+  shard has been re-run through NERGAL.
+
+## Collection, normalization, filtering
+
+Committed scripts: `src/fetch_nik_control_reports_pl.py` (acquisition + pypdf
+extraction) and `src/clean_nik_control_reports_pl.py` (normalization, tested by
+`src/test_nik_control_reports_pl_contract.py`). Cleaning steps:
+
+- Unicode NFKC; soft hyphens dropped; control characters dropped; space zoo
+  collapsed; blank runs capped at one empty line (paragraph structure kept).
+- De-hyphenation: `słowo-\nsłowo` joined between lowercase fragments (layout
+  break); mid-line hyphens and pre-uppercase breaks kept.
+- Page furniture: `strona N z M` markers and standalone page numbers dropped;
+  section numbering (I., 1.1, Art. 5) kept — it is content in these reports.
+- Boilerplate: frequency-detected, not hand-listed. Rule 1: exact line ≥ 20 chars
+  in ≥ 33% of documents. Rule 2: exact line ≥ 3 chars with ≥ 300 occurrences,
+  recurring ≥ 5× per containing document (per-page running headers) in ≥ 50
+  documents. 21 lines dropped (running section headers with pypdf ligature
+  variants, table labels). Calibrated on the shard's top-line frequency table;
+  single wrapped words (`faktycznego` at 3.4× per containing document) fall
+  below the floors and are kept. Known limit: pypdf ligature damage (`Ż` → `Ŝ`
+  etc.) splits header variants into separate lines; each variant is detected
+  on its own, damaged occurrences whose variant is rare can survive.
+- Identifier redaction as above. `build_dynaword.py` gates: length �� 200,
+  diacritic ratio, OCR alpha ratio, exact sha1 dedup.
+
+Numbers (from the clean run): 4,621 rows in, 311,654,583 chars in,
+309,053,905 chars out, 21 boilerplate lines dropped, 146 + 3 identifiers
+redacted.
+
+## Why include it / what it adds
+
+DynaWord's government/administrative slice is short on long-form analytical
+prose: NIK reports are structured argument (problem statement → evidence →
+assessment → recommendations) with dense legal and statistical vocabulary — a
+register between `dziennik_ustaw`'s normative texts and `parliamentary`'s
+speeches, and the largest state-audit corpus published openly in Poland.
+
+Bias and quality caveats a downstream user should weigh: register is legalese-
+analytical, not conversational; only NIK's own published wording is included
+(consolidated/updated versions and pre-2005 GIODO-era material are not); PDF
+text-layer extraction leaves wrapped single words on their own lines and rare
+ligature artifacts; created is year-precision.
+
+## Not checked
+
+- Whether art. 4 pkt 2 covers third-party works quoted inside the reports
+  (open legal question; documents are not filtered).
+- Scanned annexes without a PDF text layer (extraction empty) are not in the
+  shard; how many exist is unknown.
+- Publication dates kept at year precision (full dates were only on listings).
+- nik.gov.pl terms of use and robots.txt not read (fetching polite: 3 workers,
+  0.15 s delay).
+- Whether art. 4 pkt 2 is unchanged in consolidations later than Dz.U. 2000
+  poz. 904 (I: unchanged).
+- SlayerLab/NERGAL not run over this shard (pattern-level redaction only).
+- Whether every redacted 11-digit number was a PESEL (regex-based, I-level).

data/nik_control_reports_pl/nik_control_reports_pl.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:423bc5fa57236757fe3240f064ed265cc357eae89b7afd628eb5997f783355c1
+size 99544079

data/nik_control_reports_pl/nik_control_reports_pl.sampling.json

@@ -0,0 +1,2041 @@
+{
+  "seed": 20261010,
+  "method": "stratified uniform random sample without replacement, strata = control-number prefix (record_id P|I|K|S|R, rest = other)",
+  "strata": {
+    "I": {
+      "population": 481,
+      "sample_n": 40
+    },
+    "K": {
+      "population": 385,
+      "sample_n": 40
+    },
+    "P": {
+      "population": 3340,
+      "sample_n": 60
+    },
+    "R": {
+      "population": 233,
+      "sample_n": 40
+    },
+    "S": {
+      "population": 182,
+      "sample_n": 40
+    }
+  },
+  "sample_n": 220,
+  "checks": {
+    "quote_spans_40plus_chars": {
+      "hits": 184,
+      "wilson_95": [
+        0.782,
+        0.879
+      ]
+    },
+    "third_party_citation_refs": {
+      "hits": 104,
+      "wilson_95": [
+        0.408,
+        0.539
+      ]
+    },
+    "named_person_pan_pani_pattern": {
+      "hits": 132,
+      "wilson_95": [
+        0.534,
+        0.662
+      ]
+    },
+    "pesel_or_account_residual": {
+      "hits": 0,
+      "wilson_95": [
+        0.0,
+        0.017
+      ]
+    }
+  },
+  "flagged_char_share": 0.5971,
+  "classification_level": "I (regex heuristics; 12 documents hand-read on 2026-10-10 and matched the heuristic class - those 12 are V)",
+  "items": [
+    {
+      "record_id": "I/10/010#41",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 139,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/10/003#5",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 1966,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/14/004#2",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 4480,
+      "citation_ref": true,
+      "person_name": false,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/17/004#14",
+      "stratum": "I",
+      "class": "official-document (NIK authored)",
+      "quote_chars": 0,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/06/015#9",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 3834,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/15/006#6",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 3729,
+      "citation_ref": false,
+      "person_name": false,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/18/009#1",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 19094,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/10/007#0",
+      "stratum": "I",
+      "class": "official-document (NIK authored)",
+      "quote_chars": 0,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/10/010#30",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 112,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/10/031#2",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 666,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "I/10/010#29",
+      "stratum": "I",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 149,
+      "citation_ref": false,
+      "person_name": true,
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+      "person_name": true,
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+      "citation_ref": true,
+      "person_name": false,
+      "identifier_residual": false
+    },
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+      "person_name": true,
+      "identifier_residual": false
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+      "citation_ref": true,
+      "person_name": true,
+      "identifier_residual": false
+    },
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+      "person_name": false,
+      "identifier_residual": false
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+    },
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+      "stratum": "S",
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+      "citation_ref": true,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "S/13/008#1",
+      "stratum": "S",
+      "class": "official-document (NIK authored)",
+      "quote_chars": 0,
+      "citation_ref": true,
+      "person_name": false,
+      "identifier_residual": false
+    },
+    {
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+      "stratum": "S",
+      "class": "mixed (quoted third-party text inside an official document)",
+      "quote_chars": 7282,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "S/09/016#0",
+      "stratum": "S",
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+      "quote_chars": 0,
+      "citation_ref": false,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
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+      "stratum": "S",
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+      "citation_ref": true,
+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
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+    },
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+    },
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+      "person_name": true,
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+      "person_name": true,
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+      "person_name": false,
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+      "person_name": true,
+      "identifier_residual": false
+    },
+    {
+      "record_id": "S/12/024#1",
+      "stratum": "S",
+      "class": "mixed (quoted third-party text inside an official document)",
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+      "citation_ref": true,
+      "person_name": false,
+      "identifier_residual": false
+    },
+    {
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+      "stratum": "S",
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+      "quote_chars": 17383,
+      "citation_ref": true,
+      "person_name": true,
+      "identifier_residual": false
+    }
+  ]
+}

data/nik_control_reports_pl/nik_control_reports_pl.stats.json

@@ -0,0 +1,17 @@
+{
+  "read": 4621,
+  "kept": 4576,
+  "drop_short": 0,
+  "drop_lang": 3,
+  "drop_dup": 42,
+  "drop_ocr": 0,
+  "chars": 304904133,
+  "tokens": 121183078,
+  "licenses": {
+    "public-domain (official documents)": 4576
+  },
+  "authors_with_value": 4576,
+  "secs": 589.1,
+  "lang_gate": "diacritic ratio, then langid vote",
+  "license": "public-domain (official documents)"
+}

src/clean_nik_control_reports_pl.py

@@ -0,0 +1,200 @@
+#!/usr/bin/env python3
+"""Normalize NIK control-report text extracted from PDFs.
+
+Input: `src/fetch_nik_control_reports_pl.py` output (`nik_control_reports_pl.jsonl.zst`,
+text produced by pypdf from the text layer of the published PDFs).
+Output: the same schema with normalized `text`, written to `--out`.
+
+Steps (all deterministic; the shard is reproducible from the fetcher + this script):
+
+1. Unicode: NFKC; control characters dropped; soft hyphens dropped; the
+   non-breaking/thin space zoo mapped to a plain space.
+2. De-hyphenation: `slowo-\\nslowo` joined when both fragments are lowercase
+   (a hyphen at a line end between lowercase letters is a layout break).
+   A hyphen before an uppercase fragment or mid-line is kept: those are
+   real compounds or list markers.
+3. Page furniture: `strona N z M` markers and standalone page numbers dropped.
+   Section numbering (I., 1.1, Art. 5) is content in these reports and stays.
+4. Boilerplate: lines of 20+ characters that appear in >= 50% of documents are
+   page furniture (NIK letterhead with the office address and phone) and are
+   dropped. Detected by frequency across the shard, not hand-listed; the
+   dropped-line set is written to `clean_stats` below and reported in the
+   datasheet.
+5. Whitespace: runs of spaces/tabs collapsed, lines trimmed, blank runs capped
+   at one empty line (paragraph breaks kept).
+6. Identifier redaction (pattern level, NOT anonymization): PESEL (11 digits)
+   and bank-account numbers (PL+26 digits or 26 grouped digits) become [PII].
+   Names of natural persons stay: they are published in official documents
+   (officers and audited-entity personnel acting officially). SlayerLab/NERGAL
+   has not run over this shard yet; the source merges with `release: None`
+   until it does. See data/nik_control_reports_pl/.
+
+Not changed: spelling, wording, section and article numbering, table numbers.
+"""
+from __future__ import annotations
+
+import argparse, io, json, os, re, sys, time, unicodedata
+from collections import Counter
+from pathlib import Path
+
+try:
+    import zstandard as zstd
+except ImportError:  # pragma: no cover
+    zstd = None
+
+KEY = "nik_control_reports_pl"
+
+SOFT_HYPHEN_BREAK = re.compile(r"(?<=[a-ząceęłńóśźż])-\n(?=[a-ząceęłńóśźż])")
+PAGE_MARKER = re.compile(r"^strona \d+ z \d+$", re.I)
+STANDALONE_PAGE_NUMBER = re.compile(r"^\d{1,4}$")
+PESEL_RE = re.compile(r"(?<!\d)\d{11}(?!\d)")
+ACCOUNT_RE = re.compile(r"(?:PL\s?\d{2}(?:[\s]?\d{4}){6}|(?<!\d)(?:\d{4}\s){5}\d{6}(?!\d))")
+MULTISPACE = re.compile(r"[ \t\u00a0\u2000-\u200b\u202f\u205f\u3000]+")
+CONTROL_CHARS = re.compile(r"[\x00-\x08\x0b\x0c\x0e-\x1f\x7f-\x9f]")
+BLANKS = re.compile(r"\n{3,}")
+BOILERPLATE_DOCS_FRACTION = 0.33
+BOILERPLATE_MIN_LEN = 20
+
+
+def read_jsonl_zst(path: Path):
+    with path.open("rb") as fh:
+        if zstd is not None:
+            stream = io.TextIOWrapper(zstd.ZstdDecompressor().stream_reader(fh), encoding="utf-8")
+        else:  # pragma: no cover
+            import subprocess
+            stream = subprocess.Popen(["zstd", "-d", "-c", str(path)],
+                                      stdout=subprocess.PIPE, text=True, encoding="utf-8").stdout
+        for line in stream:
+            yield json.loads(line)
+
+
+def write_jsonl_zst(rows, path: Path):
+    tmp = path.with_suffix(path.suffix + f".{os.getpid()}.tmp")
+    with tmp.open("wb") as fh:
+        writer = zstd.ZstdCompressor(level=10, threads=0).stream_writer(fh)
+        out = io.TextIOWrapper(writer, encoding="utf-8", newline="\n")
+        for row in rows:
+            out.write(json.dumps(row, ensure_ascii=False) + "\n")
+        out.flush()
+        writer.close()
+    tmp.replace(path)
+
+
+def base_normalize(text: str) -> str:
+    text = unicodedata.normalize("NFKC", text)
+    text = text.replace("\u00ad", "")
+    text = SOFT_HYPHEN_BREAK.sub("", text)
+    text = CONTROL_CHARS.sub(" ", text)
+    lines = []
+    for line in text.split("\n"):
+        line = MULTISPACE.sub(" ", line).strip()
+        if PAGE_MARKER.match(line) or STANDALONE_PAGE_NUMBER.match(line):
+            continue
+        lines.append(line)
+    text = "\n".join(lines)
+    text = BLANKS.sub("\n\n", text)
+    return text.strip()
+
+
+def redact(text: str, counter: Counter) -> str:
+    text, n_p = PESEL_RE.subn("[PII]", text)
+    text, n_a = ACCOUNT_RE.subn("[PII]", text)
+    counter["redacted_pesel"] += n_p
+    counter["redacted_account"] += n_a
+    return text
+
+
+BOILERPLATE_OCCURRENCE_MIN = 300
+BOILERPLATE_OCC_PER_DOC_MIN = 5.0
+BOILERPLATE_OCC_DOCS_MIN = 50
+
+
+def find_boilerplate(doc_line_lists, total_docs: int):
+    """Frequency-detected page furniture (no hand-listing).
+
+    Rule 1: an exact line of 20+ characters present in >= 33% of documents.
+    Rule 2: an exact line of 3+ characters with >= 300 occurrences across the
+    shard, recurring >= 5 times per containing document (per-page running
+    headers and footers) in >= 50 documents. Single wrapped words ("faktycznego"
+    at 3.4x per containing document) and paragraph marks stay below these
+    floors and are kept. Thresholds calibrated on the top-line frequency table
+    of this shard (see the datasheet).
+    """
+    doc_lines = Counter()
+    occurrences = Counter()
+    for lines in doc_line_lists:
+        occurrences.update(lines)
+        for line in set(lines):
+            if line:
+                doc_lines[line] += 1
+    out = set()
+    for line, n in doc_lines.items():
+        if (len(line) >= BOILERPLATE_MIN_LEN
+                and n >= max(2, int(total_docs * BOILERPLATE_DOCS_FRACTION))):
+            out.add(line)
+        elif (len(line) >= 3
+                and occurrences[line] >= BOILERPLATE_OCCURRENCE_MIN
+                and occurrences[line] / n >= BOILERPLATE_OCC_PER_DOC_MIN
+                and n >= BOILERPLATE_OCC_DOCS_MIN):
+            out.add(line)
+    return out
+
+
+def clean_text(text: str, boilerplate, stats: Counter) -> str:
+    text = base_normalize(text)
+    kept = [line for line in text.split("\n") if line not in boilerplate]
+    text = BLANKS.sub("\n\n", "\n".join(kept)).strip()
+    return redact(text, stats)
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser(description=__doc__)
+    ap.add_argument("--in", dest="inp", type=Path, default=Path(f"../speakleash/{KEY}.jsonl.zst"))
+    ap.add_argument("--out", type=Path, default=None)
+    args = ap.parse_args()
+    out_path = args.out or args.inp
+
+    t0 = time.time()
+    rows = list(read_jsonl_zst(args.inp))
+    print(f"read {len(rows):,} rows in {round(time.time() - t0)}s", flush=True)
+
+    # Pass 1: frequency-based boilerplate detection over normalized text.
+    boilerplate = find_boilerplate(
+        (base_normalize(row["text"]).split("\n") for row in rows), len(rows))
+    print(f"boilerplate lines ({len(boilerplate)} @ two-signal frequency rules):", flush=True)
+    for line in sorted(boilerplate):
+        print(f"  - {line[:100]}", flush=True)
+
+    # Pass 2: normalize, drop boilerplate lines, redact identifiers.
+    stats = Counter()
+    cleaned = []
+    for row in rows:
+        text = clean_text(row["text"], boilerplate, stats)
+        stats["chars_in"] += len(row["text"])
+        stats["chars_out"] += len(text)
+        row = dict(row)
+        row["text"] = text
+        cleaned.append(row)
+
+    write_jsonl_zst(cleaned, out_path)
+    summary = {
+        "script": f"src/clean_{KEY}.py",
+        "rows": len(rows),
+        "boilerplate_lines": sorted(boilerplate),
+        "boilerplate_rule": "rule 1: exact line >= 20 chars in >= 33% of documents; rule 2: "
+                            "exact line >= 3 chars with >= 300 occurrences, >= 5x per "
+                            "containing document, in >= 50 documents",
+        "chars_in": stats["chars_in"],
+        "chars_out": stats["chars_out"],
+        "redacted_pesel": stats["redacted_pesel"],
+        "redacted_account": stats["redacted_account"],
+        "scrubber": "pattern-level identifier redaction only (PESEL, bank account); "
+                    "SlayerLab/NERGAL not yet run; names of persons kept as published",
+    }
+    print(json.dumps(summary, ensure_ascii=False, indent=2))
+    print(f"wrote {out_path} in {round(time.time() - t0)}s", flush=True)
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

src/fetch_nik_control_reports_pl.py

@@ -0,0 +1,256 @@
+#!/usr/bin/env python3
+"""Fetch NIK (Supreme Audit Office) control reports into a SpeakLeash-style
+.jsonl.zst for build_dynaword.py.
+
+Official documents of Najwyższa Izba Kontroli ("Informacja o wynikach
+kontroli"), outside copyright under art. 4 pkt 2 pr. aut., same legal basis
+as the shipped dziennik_ustaw and sejm_interpellations shards. The audit
+reports are PDF attachments on server-rendered control pages
+(https://www.nik.gov.pl/kontrole/...); text is extracted with pypdf.
+
+Record = one control report PDF (the "Informacja o wynikach kontroli" and
+same-page attachments); page chrome lives in meta (nr ewidencyjny, date,
+thematic field). Caveats (quoted third-party text inside official documents)
+are recorded in the companion license-evidence file; PII scrubbing is
+SlayerLab/NERGAL, not this repo.
+
+Usage:
+  python3 src/fetch_nik_control_reports_pl.py --out ~/speakleash
+  python3 src/fetch_nik_control_reports_pl.py --out ~/speakleash --max-docs 20
+"""
+from __future__ import annotations
+import argparse, gzip, html as htmllib, json, re, subprocess, sys, time
+from multiprocessing import Pool
+from pathlib import Path
+from urllib.error import HTTPError, URLError
+from urllib.parse import urljoin
+from urllib.request import Request, urlopen
+
+BASE = "https://www.nik.gov.pl"
+LISTING = BASE + "/kontrole/wyniki-kontroli-nik/prosta/limit,50,strona,{}.html"
+KEY = "nik_control_reports_pl"
+UA = {"User-Agent": "polish-dynaword/0.1 (+research; openly-licensed corpus)",
+      "Accept": "*/*"}
+MIN_CHARS = 200
+LICENSE = "public-domain (official documents)"
+AUTHOR = "Najwyższa Izba Kontroli"
+
+CTRL_RE = re.compile(r'href="([^"]*?/kontrole/[A-Z]{1,3}/\d{2}/\d{3}[^"]*)"')
+PDF_RE = re.compile(r'href="([^"]*?/kontrole/[^"]*?pobierz[^"]*?\.pdf)"', re.I)
+EWID_RE = re.compile(r"Nr ewidencyjny:\s*([A-Z]{1,3}/\d{2}/\d{3})")
+DATE_RE = re.compile(r"Data publikacji:\s*([\d. :]+)")
+FIELD_RE = re.compile(r"Dział tematyczny:\s*([^<]+)")
+TITLE_RE = re.compile(r"<h1[^>]*>(.*?)</h1>", re.S)
+TAG_RE = re.compile(r"<[^>]+>")
+
+# The results listing is a JS pager (all /strona,N URLs return page 1; no
+# sitemap). Controls carry official sequential record numbers (Nr ewidencyjny
+# P|D|I/RR/NNN), so the inventory sweeps that numbering with a gap tolerance
+# and probes only public detail pages, politely and serially.
+PREFIXES = ("P", "D", "I", "G", "K", "N", "S", "R", "A", "Z")
+YEARS = range(2004, 2027)
+MAX_GAP = 80
+
+
+def _get(url: str, retries: int = 5):
+    import http.client
+    for attempt in range(retries):
+        try:
+            with urlopen(Request(url, headers=UA), timeout=90) as r:
+                return r.read()
+        except HTTPError as e:
+            if e.code in (403, 404, 410):  # permanent answers are misses, not retries
+                return None
+            if attempt == retries - 1:
+                return None
+            time.sleep(2 * (attempt + 1))
+        except (URLError, TimeoutError, http.client.HTTPException,
+                ConnectionError, OSError):
+            if attempt == retries - 1:
+                return None
+            time.sleep(2 * (attempt + 1))
+
+
+def pdf_to_text(blob: bytes) -> str:
+    import io
+
+    import pypdf
+    reader = pypdf.PdfReader(io.BytesIO(blob))
+    parts = []
+    for page in reader.pages:
+        parts.append(page.extract_text() or "")
+    return "\n".join(parts)
+
+
+def parse_control_page(url: str, html_src: str):
+    """Control page -> (meta dict, list of PDF urls)."""
+    def clean(x):
+        return " ".join(htmllib.unescape(TAG_RE.sub("", x)).split())
+    m = EWID_RE.search(html_src)
+    d = DATE_RE.search(html_src)
+    f = FIELD_RE.search(html_src)
+    t = TITLE_RE.search(html_src)
+    meta = {
+        "control_id": clean(m.group(1)) if m else "",
+        "published": clean(d.group(1)).split()[0].replace(".", "-") if d else "",
+        "field": clean(f.group(1)) if f else "",
+        "title": clean(t.group(1)) if t else "",
+        "source_url": url,
+    }
+    pdfs = [urljoin(BASE, u.replace("&amp;", "&")) for u in PDF_RE.findall(html_src)]
+    return meta, sorted(set(pdfs))
+
+
+def _inventory_block(task):
+    """Sweep one (prefix, year) block serially; ends after MAX_GAP misses."""
+    pref, yy, delay = task
+    yy2 = str(yy)[2:]
+    rows, miss, found = [], 0, 0
+    n = 1
+    while miss < MAX_GAP:
+        url = f"{BASE}/kontrole/{pref}/{yy2}/{n:03d}"
+        raw = _get(url)  # None on any fetch failure = miss, never raises
+        n += 1
+        if raw and b"Nr ewidencyjny" in raw:
+            rows.append({"control_url": url})
+            found += 1
+            miss = 0
+        else:
+            miss += 1
+        if delay:
+            time.sleep(delay)
+    return pref, yy2, found, rows
+
+
+def inventory(out_dir: Path, delay: float, workers: int = 3):
+    """Sweep official record numbers (Nr ewidencyjny) over public detail pages.
+
+    The results listing is a JS pager, so the inventory walks the official
+    sequential numbering instead: blocks of (prefix, year), each block serial
+    and polite, a few blocks in parallel. Completed blocks are journaled to
+    inventory.done and rows appended to inventory.jsonl.gz, so a rerun (after
+    a network reset, say) resumes exactly where it stopped.
+    """
+    out_dir.mkdir(parents=True, exist_ok=True)
+    inv_path = out_dir / "inventory.jsonl.gz"
+    done_path = out_dir / "inventory.done"
+    done = set(done_path.read_text(encoding="utf-8").splitlines()) if done_path.exists() else set()
+    tasks = [(pref, yy, delay) for yy in YEARS for pref in PREFIXES
+             if f"{pref}/{str(yy)[2:]}" not in done]
+    print(f"inventory blocks: {len(tasks)} to do ({len(done)} journaled)", flush=True)
+    total = 0
+    with Pool(workers) as pool:
+        for pref, yy2, found, block_rows in pool.imap_unordered(_inventory_block, tasks):
+            if block_rows:
+                with gzip.open(inv_path, "at", encoding="utf-8", compresslevel=4) as f:
+                    for r in block_rows:
+                        f.write(json.dumps(r, ensure_ascii=False) + "\n")
+                total += len(block_rows)
+            with done_path.open("a", encoding="utf-8") as f:
+                f.write(f"{pref}/{yy2}\n")
+            if found:
+                print(f"  {pref}/{yy2}: {found} controls (+{total} rows so far)", flush=True)
+    rows = []
+    seen = set()
+    with gzip.open(inv_path, "rt", encoding="utf-8") as f:
+        for line in f:
+            try:
+                r = json.loads(line)
+                if r["control_url"] not in seen:
+                    seen.add(r["control_url"])
+                    rows.append(r)
+            except Exception:
+                pass
+    print(f"inventory controls: {len(rows):,}", flush=True)
+    return rows
+
+
+def compress(jsonl: Path, out_dir: Path) -> Path:
+    target = out_dir / f"{KEY}.jsonl.zst"
+    try:
+        subprocess.run(["zstd", "-19", "-f", "--rm", str(jsonl), "-o", str(target)], check=True)
+    except (FileNotFoundError, subprocess.CalledProcessError):
+        import zstandard
+        with open(jsonl, "rb") as src, open(target, "wb") as dst:
+            zstandard.ZstdCompressor(level=19).copy_stream(src, dst)
+        jsonl.unlink()
+    return target
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--out", type=Path, default=Path("."))
+    parser.add_argument("--delay", type=float, default=0.2)
+    parser.add_argument("--max-docs", type=int, default=0)
+    args = parser.parse_args()
+    args.out.mkdir(parents=True, exist_ok=True)
+    jsonl = args.out / f"{KEY}.jsonl"
+    t0 = time.time()
+    controls = inventory(args.out, args.delay)
+    print(f"inventory controls: {len(controls):,}", flush=True)
+    done = set()
+    if jsonl.exists():
+        with open(jsonl, encoding="utf-8") as f:
+            for line in f:
+                try:
+                    done.add(json.loads(line)["record_id"])
+                except Exception:
+                    pass
+    kept = skipped = 0
+    with open(jsonl, "a", encoding="utf-8") as fo:
+        for row in controls:
+            raw = _get(row["control_url"])
+            if raw is None:
+                skipped += 1
+                continue
+            html_src = raw.decode("utf-8", "replace")
+            meta, pdfs = parse_control_page(row["control_url"], html_src)
+            for i, pdf_url in enumerate(pdfs):
+                rid = f"{meta['control_id'] or row['control_url'].rstrip('/').split('/')[-1]}#{i}"
+                if rid in done:
+                    continue
+                blob = _get(pdf_url)
+                if blob is None:
+                    skipped += 1
+                    continue
+                try:
+                    text = pdf_to_text(blob)
+                except Exception:
+                    skipped += 1
+                    continue
+                text = re.sub(r"[ \t]+", " ", text)
+                text = "\n".join(line.strip() for line in text.splitlines() if line.strip())
+                if len(text) < MIN_CHARS:
+                    skipped += 1
+                    continue
+                fo.write(json.dumps({
+                    "id": f"{KEY}_{meta['control_id'].replace('/', '_').lower()}_{i}" if meta["control_id"] else f"{KEY}_{abs(hash(pdf_url)) % 10**12}_{i}",
+                    "record_id": rid,
+                    "text": text,
+                    "created": meta["published"],
+                    "license": LICENSE,
+                    "author": AUTHOR,
+                    "control_id": meta["control_id"],
+                    "title": meta["title"],
+                    "field": meta["field"],
+                    "source_url": pdf_url,
+                }, ensure_ascii=False) + "\n")
+                done.add(rid)
+                kept += 1
+                if args.max_docs and kept >= args.max_docs:
+                    break
+            if (kept + skipped) % 50 == 0:
+                print(f"  seen {kept + skipped:,} kept {kept:,} skip {skipped:,} "
+                      f"{(kept + skipped) / max(time.time() - t0, 1):.2f}/s", flush=True)
+            if args.max_docs and kept >= args.max_docs:
+                break
+            if args.delay:
+                time.sleep(args.delay)
+    print(f"fetched {kept:,} new reports ({skipped:,} skipped); compressing...", flush=True)
+    target = compress(jsonl, args.out)
+    print(f"wrote {target} in {round(time.time() - t0)}s")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

src/sources.py

@@ -1043,6 +1043,32 @@ SOURCES = {
         "is_ocr": False,
         "custom_datasheet": True,
     },
+    "nik_control_reports_pl": {
+        "added": "2026-10-10",
+        "release": None,
+        "file_key": "nik_control_reports_pl",
+        "pretty": "NIK control reports (Najwyższa Izba Kontroli)",
+        "license": "public-domain (official documents)",
+        "license_spdx": "LicenseRef-Polish-Official-Documents",
+        "traceable": "Official control reports excluded from copyright under Polish "
+                     "Copyright Act art. 4 pkt 2; reuse of public-sector information under "
+                     "the Polish Open Data Act arts. 2(12), 5, 14 and 17. Caveats (quoted "
+                     "third-party text inside official documents), quotes and hashes: "
+                     "data/nik_control_reports_pl/nik_control_reports_pl.license-evidence.json.",
+        "provenance": "Fetched directly from nik.gov.pl (Najwyzsza Izba Kontroli): the public "
+                      "results listing is a JS pager, so the inventory sweeps the official "
+                      "record numbers (Nr ewidencyjny P|D|I/RR/NNN) over public detail pages; "
+                      "each report PDF ('Informacja o wynikach kontroli' and attachments) is "
+                      "extracted with pypdf from its text layer, then "
+                      "src/clean_nik_control_reports_pl.py normalizes the text. No "
+                      "intermediary snapshot.",
+        "domain": "audit/control reports (state audit)",
+        "created": "2005-2026",
+        "preserve_id": True,
+        "preserve_created": True,
+        "is_ocr": False,
+        "custom_datasheet": True,
+    },
 }
 
 # Fallback stamp for a source with no recorded "added" date of its own.

src/test_nik_control_reports_pl_contract.py

@@ -0,0 +1,134 @@
+"""TDD contract for NIK (Supreme Audit Office) control reports ingestion."""
+import json
+import sys
+import unittest
+from collections import Counter
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+
+ROOT = Path(__file__).resolve().parent.parent
+DATA = ROOT / "data" / "nik_control_reports_pl"
+PARQUET = DATA / "nik_control_reports_pl.parquet"
+STATS = DATA / "nik_control_reports_pl.stats.json"
+EVIDENCE = DATA / "nik_control_reports_pl.license-evidence.json"
+SAMPLING = DATA / "nik_control_reports_pl.sampling.json"
+CARD = DATA / "nik_control_reports_pl.md"
+CANON = ["id", "text", "source", "added", "created", "token_count", "license", "author"]
+
+from clean_nik_control_reports_pl import (  # noqa: E402
+    base_normalize,
+    clean_text,
+    find_boilerplate,
+    redact,
+)
+from fetch_nik_control_reports_pl import KEY, EWID_RE  # noqa: E402
+
+
+class NormalizeTextTest(unittest.TestCase):
+    """Filters live in the committed clean script; these pin their behaviour."""
+
+    def test_soft_hyphen_breaks_are_joined(self):
+        out = base_normalize("sporzą-\ndzenie pozostałych projektów\nzlecono")
+        self.assertIn("sporządzenie pozostałych projektów", out)
+
+    def test_mid_line_hyphens_are_content(self):
+        out = base_normalize("rozwój gminnej i powiatowej infrastruktury\nwarszawsko-łódzki koridor")
+        self.assertIn("warszawsko-łódzki", out)
+
+    def test_page_furniture_is_dropped_content_kept(self):
+        text = "I. Dane identyfikacyjne\nstrona 2 z 47\n18\nKontrole przeprowadzono w 2018 r."
+        out = base_normalize(text)
+        self.assertNotIn("strona 2 z 47", out)
+        self.assertNotIn("\n18\n", f"\n{out}\n")
+        self.assertIn("I. Dane identyfikacyjne", out)
+        self.assertIn("Kontrole przeprowadzono", out)
+
+    def test_boilerplate_is_frequency_detected_not_hand_listed(self):
+        letterhead = "NAJWYŻSZA IZBA KONTROLI ul. Filtrowa 57, 02-056 Warszawa tel. +48 22 444 50 00"
+        body = [
+            [letterhead, "Wystąpienie pokontrolne do Ministra Zdrowia w sprawie dostępności"],
+            [letterhead, "Kontrola przeprowadzona w jednostkach podległych wojewodzie"],
+            [letterhead, "Ustalenia kontroli przedstawiono w części opisowej sprawozdania"],
+            [letterhead, "Wnioski pokontrolne skierowano do kontrolowanych jednostek"],
+        ]
+        boiler = find_boilerplate(iter(body), len(body))
+        self.assertIn(letterhead, boiler)
+        stats = Counter()
+        out = clean_text("Ustalenia kontroli przedstawiono w części opisowej sprawozdania\n" + letterhead,
+                         boiler, stats)
+        self.assertNotIn("Filtrowa", out)
+        self.assertIn("Ustalenia kontroli", out)
+
+    def test_page_headers_recurring_inside_docs_are_dropped(self):
+        header = "WAŻNIEJSZE WYNIKI KONTROLI"
+        word = "faktycznego"
+        docs = []
+        for i in range(120):
+            docs.append([header] * 20 + [word] * 3 + [f"Ustalenia numer {i} w części opisowej sprawozdania z kontroli"] * 5)
+        for i in range(40):
+            docs.append([f"Ten dokument nie powtarza nagłówka stronicowego ani razu {i}"])
+        boiler = find_boilerplate(iter(docs), len(docs))
+        self.assertIn(header, boiler)
+        self.assertNotIn(word, boiler, "wrapped single words are content, not furniture")
+        self.assertNotIn("", boiler, "paragraph marks are structure")
+
+    def test_identifiers_are_redacted_not_numbers_of_law(self):
+        stats = Counter()
+        text = "Numer PESEL świadka 12345678901 oraz rachunek PL61109010140000071219812874, a także art. 4 pkt 2 ustawy."
+        out = redact(text, stats)
+        self.assertEqual(stats["redacted_pesel"], 1)
+        self.assertEqual(stats["redacted_account"], 1)
+        self.assertNotIn("12345678901", out)
+        self.assertNotIn("0000071219812874", out)
+        self.assertIn("art. 4 pkt 2", out)
+
+
+class ShardContractTest(unittest.TestCase):
+    def test_parquet_schema_and_rows(self):
+        import pandas as pd
+        self.assertTrue(PARQUET.exists(), "run src/build_dynaword.py nik_control_reports_pl first")
+        df = pd.read_parquet(PARQUET)
+        self.assertEqual(list(df.columns), CANON)
+        self.assertGreater(len(df), 1000)
+        self.assertTrue((df["text"].str.len() >= 200).all())
+        self.assertTrue((df["token_count"] > 0).all())
+        self.assertEqual(set(df["source"]), {KEY})
+        self.assertEqual(set(df["license"]), {"public-domain (official documents)"})
+        self.assertFalse(df["id"].duplicated().any())
+
+    def test_stats_match_parquet(self):
+        import pandas as pd
+        stats = json.loads(STATS.read_text(encoding="utf-8"))
+        df = pd.read_parquet(PARQUET)
+        self.assertEqual(stats["kept"], len(df))
+        self.assertEqual(stats["chars"], int(df["text"].str.len().sum()))
+        self.assertEqual(stats["read"], stats["kept"] + stats["drop_short"] + stats["drop_lang"]
+                         + stats["drop_dup"] + stats["drop_ocr"])
+
+    def test_evidence_records_basis_and_not_checked(self):
+        ev = json.loads(EVIDENCE.read_text(encoding="utf-8"))
+        for key in ("source", "checked_at", "license", "license_spdx", "status", "review_scope",
+                    "finding", "evidence_url", "sha256", "copyright_basis", "sampling", "not_checked"):
+            self.assertIn(key, ev)
+        self.assertEqual(ev["source"], KEY)
+        self.assertTrue(ev["not_checked"], "a review that lists only what passed reads as complete")
+        self.assertEqual(ev["sampling"]["mark"], "V")
+        self.assertGreaterEqual(ev["sampling"]["sample_n"], 40)
+
+    def test_sampling_artifact_keeps_ids_and_seed(self):
+        smp = json.loads(SAMPLING.read_text(encoding="utf-8"))
+        self.assertIn("seed", smp)
+        self.assertTrue(smp["items"], "sample IDs and per-item classification must be saved")
+        self.assertTrue(all("record_id" in item and "class" in item for item in smp["items"]))
+
+    def test_card_documents_provenance_and_rights(self):
+        card = CARD.read_text(encoding="utf-8")
+        self.assertIn("nik.gov.pl", card)
+        self.assertIn("art. 4 pkt 2", card)
+        self.assertIn("Not checked", card)
+        self.assertIn("NERGAL", card)
+
+
+if __name__ == "__main__":
+    unittest.main()