The undercover police unit once called a "jewel in the crown" of Scotland Yard had to be disbanded because it was conducting unjustified surveillance and was badly run, the spycops public inquiry heard on 2 August 2026. Jon Boutcher, the senior officer who took over responsibility for the Special Demonstration Squad (SDS), told the inquiry he concluded within months that the unit had to be wound up "pretty quickly" The Guardian.

At the time, Boutcher was a detective chief superintendent in Scotland Yard's counter-terrorist division. He is now chief constable of the Police Service of Northern Ireland. He is identified at the Undercover Policing Inquiry by the designation HN773.

Boutcher said most of the political groups infiltrated by the SDS "posed no threat to public order, let alone democracy." Those targeted included pro-Palestinian supporters, leftwing groups, environment groups, the Socialist Workers party, and campaigns against racism. He suspected the SDS was gathering an "extremely limited" amount of useful information and asked the unit to list its successes over the previous five years. The responses, apparently, did not persuade him otherwise.

Meanwhile, very few undercover officers were being directed to infiltrate terrorist groups, at a time when society faced what Boutcher described as "an increasing and enduring threat from international terrorism." The mismatch between the SDS's actual deployment and the threat landscape it should have been addressing was central to his conclusion that the unit could not continue.

Boutcher, with the agreement of his superiors, disbanded the SDS in what he called "quite a groundbreaking" decision. The unit had been running covert operations for 40 years. In its final days, the inquiry heard this week, a "toxic" atmosphere prevailed between the SDS and more senior Scotland Yard ranks. Boutcher said the SDS mounted "almost like a rearguard action" to justify its existence, characterising the unit's posture as a "very much siege mentality in many ways."

The conduct of SDS officers went far beyond questionable targeting. Boutcher told the inquiry that the "abusive and inappropriate behaviour" of undercover officers had damaged members of the public. SDS officers routinely formed intimate relationships with women they were spying on, without revealing their true identities. Boutcher described this as the "sexual abuse of many vulnerable women by some SDS operatives" and said it had caused "incalculable and intolerable harm."

He also said the SDS should never have spied on grieving families, citing the relatives of Jean Charles de Menezes, who was shot dead by police on the London Underground in 2005, as an example.

The spycops inquiry, formally the Undercover Policing Inquiry, is examining the conduct of 139 undercover officers in the SDS and another covert unit who infiltrated mainly leftwing organisations between 1968 and at least 2010. The inquiry's Tranche 3 (Phase 3) hearings commenced on 15 June 2026, and it has published over 9,074 evidential documents to date.

The broader context here matters. The SDS was not a rogue fringe unit operating on the margins of Scotland Yard; it had been lauded by supporters within senior ranks as a "jewel in the crown." Boutcher's testimony makes clear that the decision to shut it down required overcoming institutional resistance from a unit that saw itself as indispensable and fought its own closure. The fact that the unit persisted for four decades despite conducting surveillance that Boutcher now says was unjustified raises questions not just about the SDS itself but about the oversight structures, or lack thereof, that allowed it to operate unchecked for so long.

There is also a stark resource-allocation dimension. Boutcher's observation that counter-terrorism resources were being diverted away from infiltrating genuine terrorist threats toward surveilling peaceful political groups is not merely a historical curiosity. It is an admission that the unit's misdirected focus may have come at an opportunity cost during a period when international terrorism posed what he called an "enduring" threat. For policing scholars and oversight professionals, that tradeoff is among the most consequential findings to emerge from the inquiry.

Boutcher's current role as chief constable of the Police Service of Northern Ireland adds a further layer. In May 2024, the BBC reported that Boutcher said he would not "speculate" over alleged journalist surveillance by the PSNI, and that a court was dealing with allegations the PSNI acted unlawfully in relation to surveillance of journalists. He was also due to meet the Policing Board leadership over the matter. Those allegations predate his spycops testimony but sit in the same institutional landscape: a senior officer who disbanded one covert unit for unjustified surveillance now heads a police service facing its own surveillance-related legal proceedings.

The inquiry continues.