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Undercover Policing Inquiry to Surpass £200 Million and Become UK’s Costliest

Lengthy legal fights to shield officers’ identities have delayed proceedings, pushing the next batch of hearings to October 2025.

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The inquiry into the Met’s Special Demonstration Squad was due to conclude before the end of next year

Overview

  • The inquiry launched in 2015 by Theresa May has already spent £170.6 million and is projected to exceed £200 million, overtaking the Bloody Sunday and Grenfell Tower probes.
  • Sir John Mitting will step down after the second interim report due in 2026, raising concerns that appointing his successor could further extend the timeline.
  • Legal tactics used to protect undercover officers’ identities have driven up costs and elongated hearings for the inquiry’s 249 core participants.
  • The inquiry has released 70 cover names from the Metropolitan Police’s Special Demonstration Squad and will focus its next evidence hearings on 1993–2007 operations, including the Stephen Lawrence investigation.
  • Critics including Shadow Home Secretary Chris Philp say the probe is spiraling out of control and warn that escalating costs could force cuts to frontline policing budgets.