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+# Research pass: NZ 1928 and Colombia 1939 articles
+
+Research checked on 26 October 2026. Two article-backlog items cleared, both
+first bans, both verified from sources actually read. No scores, profiles or
+timelines changed.
+
+## New Zealand 1928: Dangerous Drugs Act commencement (pop 5M)
+
+New `articles/new-zealand-dangerous-drugs-commencement-1928.md` (416 words,
+per-sentence citations, all three sources cited; history:test 40/40,
+answers:test 37/37, build 4273 pages).
+
+Sources actually read:
+
+- The as-enacted Dangerous Drugs Act 1927, No. 18, via the ENZS Auckland
+ reproduction on the Wayback Machine
+ (`web.archive.org/web/2019/http://www.enzs.auckland.ac.nz/docs/1927/1927A018.pdf`,
+ added as a second law source): assent 11 November 1927; section 1
+ commencement 1 January 1928; section 9 licensing rule (licence from the
+ Director-General or other lawful authority, prior offenders need ministerial
+ approval); Schedule definition of Indian hemp (dried flowering/fruiting tops
+ of the pistillate plant with resin unextracted, plus resin, resin-based
+ preparations, extracts and tinctures). The official legislation.govt.nz URL
+ from the entry returns an empty 202 to non-browser fetchers, and NZLII
+ returns 403, so the archived print is the read copy; both URLs are cited.
+- NZLC R122, Controlling and Regulating Drugs (2011): chapter 3 on the 1925
+ Geneva Convention adding cannabis/Indian hemp and NZ complying through the
+ 1927 Act's licensing scheme; foreword on the Misuse of Drugs Act 1975 as the
+ later governing statute (used only for that framing, not for repeal
+ mechanics, which were not verified).
+
+## Colombia 1939: absolute cultivation ban (pop 53M)
+
+Entry `colombia-restrictions-1939` upgraded from Wiki-only: enriched
+description with per-sentence citations, added `related` links to the 1928
+first law and the 1949 decree, and new `articles/colombia-restrictions-1939.md`
+(377 words; both sources cited; rendered page shows both reference marks).
+
+Source actually read:
+
+- Eduardo Sáenz Rovner, "The 'prehistory' of marihuana consumption and
+ growing in Colombia between 1930 and 1960", Cuadernos de Economía, vol. XXVI
+ no. 47, Bogotá, 2007 (SciELO English version). Verified: authorities
+ noticed growing in 1925 (ports); measures since the 1920s; US 1937 Tax Act
+ and Anslinger/Kolb campaign as the pressure; Kolb's "Marihuana: the weed
+ which drives you mad" in the Revista de Higiene, September 1939; the
+ absolute prohibition (destroy plantations, violators punished as traffickers
+ in "drastic drugs"); Resolución 645 of 18 September 1939 (Diario Oficial, 6
+ October 1939); Colombia's 1939 drug-traffic report (AGN-FMRE box 120, folder
+ 940) as the archival footprint. The 1949 decree's recall of the 1939
+ resolution is taken from that (checked, UN-sourced) entry per WRITING.md.
+
+## Working-tree note (not mine, not committed)
+
+While verifying, the tree gained concurrent edits from another writer: new
+2025 entries at the top of `changes.yaml` (Paraguay, Malta, …), reflows/date
+bumps in ~20 country files, two article edits (Samoa, Vietnam), new tests in
+`scripts/profile-claims.test.mjs` (which moved answers:test from 27 to 37
+passing), and `source-archive.json` growth. My commit stages only my hunk of
+`changes.yaml` (via patch filtering) plus my two articles and this note, and
+re-verified the build and both suites on the shared tree before committing.
+
+## Still open
+
+- ~60 estimated first bans; biggest needs ET, VE, CU, BO, CM (no primaries found).
+- Backlog next: TN 1875 (single unread book source), SY 1943 / GT 1932 / UG 1902
+ (all Wiki-only, no readable primary yet).
+- Pre-existing India chain warning untouched.