What do the primary operative sections of the 2025 OECD Merger Review Recommendation (OECD/LEGAL/0333) address, and what topics were deliberately separated into other OECD instruments rather than included in this Recommendation?
On a second, differently-framed question about the same instrument, the model again generated a six-section structure and this time fabricated a specific cross-reference, attributing broader cooperation governance to OECD/LEGAL/0408 (2014), a legal instrument identifier that does not appear in the 2025 Recommendation's text. The response constructed a coherent-sounding inter-instrument division of scope that is consistent with how OECD governance generally works but is not what the 2025 Recommendation states. The repeated structural fabrication across independently posed questions, with web search active, confirms the reconstruction is drawn from training rather than corrected by retrieval.
The fabrication of a specific OECD legal instrument identifier (OECD/LEGAL/0408 [2014]) as the basis for a cross-instrument scope division is a citation-generation failure: the model produced a correctly-formatted OECD legal reference that either does not exist or is misattributed. With web search active, the retrieval layer did not flag the fabrication — the generated citation passed the model's internal plausibility check without verification against a retrieved source. This implicates the citation-generation and citation-verification subsystems.
AI tools asked to describe what the 2025 Recommendation addresses and what was deliberately excluded produced a scope characterisation listing 'Transnational Co-operation' as operative section (v) and 'Monitoring' as section (vi), while omitting Section V's ex-post assessment mandate as a standalone operative section. This error mirrors Finding 1 and confirms the mischaracterisation is systematic rather than isolated.
For Legal teams conducting regulatory gap analysis, determining what obligations flow from adherence to the Recommendation versus what is governed by other OECD instruments, a wrong scope map produces wrong gap analysis, leading either to missed obligations or to unnecessary compliance work directed at non-operative provisions.
Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.
RegLeg Specialist Panel (2026). "Finding#4, Transnational co-operation invented as operative section; Section V omitted — Private Equity Vc × Legal — International / Multilateral." Citation ID: RLB-F-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006. RegLegBrief AI Hallucination Research, published 2026-06-11. https://reglegbrief.com/regulators/j1/int/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/sectors/private_equity_vc/legal/finding/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006/
RegLeg Specialist Panel. (2026). Finding#4, Transnational co-operation invented as operative section; Section V omitted [Hallucination finding RLB-F-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j1/int/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/sectors/private_equity_vc/legal/finding/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006/
RegLeg Specialist Panel, Finding#4, Transnational co-operation invented as operative section; Section V omitted [RLB-F-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006], RegLegBrief AI Hallucination Research (June 11, 2026), https://reglegbrief.com/regulators/j1/int/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/sectors/private_equity_vc/legal/finding/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006/.
@misc{reglegbrief_RLB_F_INT_OECD_OECD_MERGER_REVIEW_RECOMMENDATION_2025_Q006,
author = {RegLeg Specialist Panel},
title = {Finding#4, Transnational co-operation invented as operative section; Section V omitted},
year = {2026},
publisher = {RegLegBrief AI Hallucination Research},
note = {Hallucination finding Citation ID: RLB-F-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006},
url = {https://reglegbrief.com/regulators/j1/int/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/sectors/private_equity_vc/legal/finding/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006/}
}
Every finding on this page compares an AI subject's account of the rule against the regulator's verbatim text from the regulator's own portal. Both are linked. Each delta, its root causes, and impact analysis are documented and published with immutable Citation IDs.