No legal claim was lodged and no MOPAC or Home Office direction was issued by 7 August; Big Brother Watch's archive records no filing, and the rollout continued into a BTP trial on the TfL network on 10 August.
The checks market resolves on whichever of those two events happens first by 7 August 2026; if neither happens, it resolves as no check on the rollout. "Legal challenge filed" requires a claim actually lodged with a court or a formal pre-action letter confirmed by the claimant organisation — a threat in a press quote does not count. "Mayoral or government intervention" means a formal MOPAC direction, Home Office instruction, or announced statutory framework constraining the rollout, per gov.uk or london.gov.uk.
We looked at the big steps in UK police use of facial recognition since 2016 that met public or legal objections, and checked whether each went ahead unchanged. We found four. Three did. The exception was South Wales Police, after the Court of Appeal ruled its use unlawful in 2020. The force paused, rewrote its rules and started again.