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IOPC recommendations following Fishmongers’ Hall terror attack being implemented nationally by police forces

Factual summary of a published IOPC investigation, covering the incident, key findings and outcome.

All IOPC reports
Published
2021-06-10
Investigation type
independent

What was investigated

The IOPC conducted two investigations following the terrorist attack by Usman Khan at Fishmongers’ Hall, focusing on police management of terrorism offenders and the actions taken during the attack.

Key findings

  • Officers were not sufficiently trained to manage the risks posed by terrorism offenders.
  • Guidance on managing mobile devices for convicted terrorist offenders has been included in the counter-terrorism manual.
  • There was a lack of accountability among agencies responsible for managing Usman Khan.
  • Training for officers on managing terrorism offenders is under development.

Outcome

The investigations concluded that while no wrongdoing was found by officers, significant recommendations were made for improvements in managing terrorism offenders.

Read the full report on policeconduct.gov.uk

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Reviewed by the BlueLineHub Editorial Team
Last reviewed: 14 July 2026 · Next review due: 14 January 2027

This is a factual summary of a report published by the Independent Office for Police Conduct. Individuals are referred to exactly as the source report anonymises them. BlueLineHub is independent and not affiliated with the IOPC · Summarised 2026-07-14.