AI Hallucination ResearchAudiencesPractitionersUnited KingdomStockbrokers / Trading RepsDetail › Finding
Practitioners — Stockbrokers / Trading Reps · updated 2026-05-28 · methodology v2.1
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Foreseeable harm and customer-accepted risk under the Consumer Duty

RLB Citation ID: RLB-F-GB-FCA-CONSUMER-DUTY-PS22-9-Q003
AI's failure:Inference Drift Risk for Stockbrokers / Trading Reps:Regulatory enforcement / professional liability exposure
What the RLB Specialist Panel found
Question (paraphrased to protect IP)

Does the Consumer Duty require firms to prevent all foreseeable harm to retail customers? What is the position where a customer understands and accepts a risk?

RLB's analysis

The FCA's rule sets a single condition, the firm's reasonable belief that the customer understands and accepts the risk. The model reconstructed a multi-part compliance test (good faith, supported understanding, avoided firm-caused harm, plus general Duty compliance) that does not appear in the regulator's text. This expansion substitutes an inference-derived elaboration for the published rule, removing the qualifier "reasonably believes" and replacing it with a more demanding composite standard.

AI Head's analysis — what weakness in the AI model caused this

This finding implicates the model's handling of qualified regulatory rules: the FCA's foreseeable harm provision is a single-condition safe harbour ('reasonably believes'), but the model reconstructed it as a multi-factor compliance test ('good faith', 'supported understanding', 'avoided firm-caused harm', 'otherwise complied with the Duty'). The model dropped the qualifier 'reasonably believes' and inflated the test in the direction of a more demanding standard. The retrieval layer did not correct this; the cited FCA Handbook URL did not anchor the response to the actual rule text.

For a compliance-eval probe, this is a high-priority candidate: pair a rule that turns on a single test with a question that invites a multi-factor answer, and watch whether the model preserves the regulator's structure or reconstructs it.

Cited source(s)
  • https://handbook.fca.org.uk/handbook/PRIN/2A/2.html, Pretextual
  • https://www.fca.org.uk/publication/finalised-guidance/fg22-5.pdf, Pretextual
  • Regulator portal (if any cited link is dud): https://www.fca.org.uk
Impact for Stockbrokers / Trading Reps in the United Kingdom advising on the Consumer Duty (PS22/9 + PRIN 2A)

Stockbrokers and trading representatives executing for retail clients operate squarely within the foreseeable-harm provision; the model's multi-factor reconstruction would, if adopted in a desk policy or customer-warning template, raise the standard above the FCA's actual single-test requirement. A retail-facing trader who relies on the AI's framing builds a defensive process the rule does not require, with no enforcement benefit and added customer friction.

References — raw findings (per AI model)
This finding also affects
Cite this finding

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.

RLB Citation ID: RLB-F-GB-FCA-CONSUMER-DUTY-PS22-9-Q003
Plain text Download
RegLeg Specialist Panel (2026). "Foreseeable harm and customer-accepted risk under the Consumer Duty — Practitioners — Stockbrokers / Trading Reps." Citation ID: RLB-F-GB-FCA-CONSUMER-DUTY-PS22-9-Q003. RegLegBrief AI Hallucination Research, published 2026-05-28. https://reglegbrief.com/regulators/j3/gb/fca/consumer-duty-ps22-9/practitioners/stockbrokers-trading-reps/finding/GB-FCA-GB-001-CONSUMER-DUTY-PS22-9-v1-003/
APA 7th edition Download
RegLeg Specialist Panel. (2026). Foreseeable harm and customer-accepted risk under the Consumer Duty [Hallucination finding RLB-F-GB-FCA-CONSUMER-DUTY-PS22-9-Q003]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j3/gb/fca/consumer-duty-ps22-9/practitioners/stockbrokers-trading-reps/finding/GB-FCA-GB-001-CONSUMER-DUTY-PS22-9-v1-003/
Bluebook / OSCOLA (US + UK legal) Download
RegLeg Specialist Panel, Foreseeable harm and customer-accepted risk under the Consumer Duty [RLB-F-GB-FCA-CONSUMER-DUTY-PS22-9-Q003], RegLegBrief AI Hallucination Research (May 28, 2026), https://reglegbrief.com/regulators/j3/gb/fca/consumer-duty-ps22-9/practitioners/stockbrokers-trading-reps/finding/GB-FCA-GB-001-CONSUMER-DUTY-PS22-9-v1-003/.
BibTeX Download
@misc{reglegbrief_RLB_F_GB_FCA_CONSUMER_DUTY_PS22_9_Q003,
  author    = {RegLeg Specialist Panel},
  title     = {Foreseeable harm and customer-accepted risk under the Consumer Duty},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-F-GB-FCA-CONSUMER-DUTY-PS22-9-Q003},
  url       = {https://reglegbrief.com/regulators/j3/gb/fca/consumer-duty-ps22-9/practitioners/stockbrokers-trading-reps/finding/GB-FCA-GB-001-CONSUMER-DUTY-PS22-9-v1-003/}
}
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