34 verifiable claims extracted; 30 verified against Tier 1 primary sources (statute text on issuing-body sites, court opinions, NIST publications), 4 marked ⚠ Partial. The Illinois BIPA framework (740 ILCS 14 §§10, 15, 20), the August 2024 SB 2979 amendment, the April 2026 Clay v. Union Pacific retroactivity ruling, the Texas/Meta $1.4B settlement, and the named-case dollar amounts (Patel $650M, Cothron $9.39M, Rogers/BNSF $228M with vacatur, Six Flags $36M) all verify against issuing-body sources. The four ⚠ Partial entries are: the two American Payroll Association statistics (~2% of payroll; the underlying primary publication is hard to anchor — the article already softens to "industry estimates around 2%"), the Robert Half "4.5 hours per employee per week" figure (industry-reported, not peer-reviewed), and the QuickBooks 16% admission rate (proprietary survey, no peer review). No claims required revision.