Britain’s Spy Cops Did Not Observe Climate Movements. They Manipulated Them.

Britain’s undercover police infiltrated climate movements to manipulate organizing, conceal evidence and protect the state from accountability.

For seven years, Metropolitan Police officer Mark Kennedy lived under the name Mark Stone. He travelled with environmental activists, entered their homes, joined their meetings and built the intimate trust that makes political organizing possible. He was not watching the movement from outside. The British state had placed one of its officers inside the social fabric of the movement and allowed him to help shape it.

Kennedy infiltrated environmental and anti-capitalist networks between 2003 and 2010 as part of the National Public Order Intelligence Unit. His targets were not an armed conspiracy. They were campaigners confronting coal plants, fossil-fuel infrastructure and the political power protecting them. Police treated organized opposition to environmental destruction as an intelligence problem requiring years of deception.

The distinction between surveillance and participation collapsed in practice. Kennedy drove activists, paid expenses, supplied logistical support and joined planning. He entered sexual relationships while using a false identity. His deployment gave police access not only to political information but to the private lives, vulnerabilities and internal relationships of people who had committed no offence by trusting him.

Ratcliffe Exposed the Machinery

In April 2009, police arrested 114 people before a planned occupation of the Ratcliffe-on-Soar coal-fired power station. Kennedy had been present during the organizing. Twenty activists were later convicted of conspiracy to commit aggravated trespass. Another six defendants denied agreeing to participate and prepared to stand trial.

That prosecution collapsed after Kennedy’s role became public. Recordings he made during meetings contained material capable of supporting the defence, but the recordings and the true extent of his involvement had not been disclosed. The state possessed evidence gathered by its own officer, prosecuted activists whose defence could use it, and kept that evidence from them.

The Court of Appeal subsequently overturned the convictions of the other 20 activists. Parliament’s Home Affairs Committee summarized the court’s findings bluntly: Kennedy had gone much further than his authorization permitted and appeared to be an enthusiastic supporter of the proposed occupation. The convictions were unsafe because prosecutors had not disclosed material connected to the undercover operation.

This was not a procedural blemish attached to an otherwise legitimate investigation. The infiltrator helped sustain the political activity, recorded it and became a hidden participant in the prosecution built around it. When his role was concealed, defendants lost access to evidence about how the alleged conspiracy had actually developed.

Infiltration Produces the Threat It Records

An agent provocateur does more than observe an offence. The agent encourages, facilitates or escalates conduct that the state can later police. Not every undercover deployment meets that definition, and the courts did not declare that Kennedy invented the Ratcliffe plan. The documented record establishes something already damning: he became an active supporter whose participation exceeded his authorization while evidence about that participation was withheld.

That creates an institutional incentive no democratic slogan can clean up. Police units assigned to monitor “domestic extremism” need extremists to justify their budgets, powers and continued existence. A passive observer may report that a group poses little threat. An embedded participant can intensify commitment, provide resources and help convert discussion into an actionable plan. The intelligence operation then manufactures evidence of its own necessity.

The same logic runs through the American informant system examined in the FBI terror-factory case. Agencies identify politically marginal or vulnerable people, place paid or protected operatives around them, supply capacity that did not previously exist and present the resulting plot as proof that aggressive policing was required. Britain’s climate infiltrations operated in a different legal and political setting, but the institutional machinery is recognizable.

The Deception Entered Women’s Lives

The operation’s violence was not confined to collapsed prosecutions. Kennedy and other undercover officers entered sexual relationships with women who knew them only through fabricated identities. These were not private affairs accidentally intersecting with police work. The false identities, employment, histories and political commitments that made consent possible were supplied by the state.

In the case brought by Kate Wilson, the Investigatory Powers Tribunal found a formidable list of human-rights violations. Police later acknowledged serious failures in Kennedy’s supervision and management. Wilson received £229,000 in compensation after the tribunal concluded that Kennedy had degraded and humiliated her through an abuse of police power.

The scale went beyond Kennedy. A 2025 investigation identified at least 25 undercover officers who had sexual relationships with people deceived about their identities. Approximately 139 officers from two covert squads spied on more than 1,000 political groups across decades. The targets were overwhelmingly drawn from left-wing, anti-racist, environmental and police-accountability movements.

This Was State Policy, Not Rogue Conduct

Calling Kennedy a rogue officer protects the institutions that deployed him. His operation required a salary, a cover identity, documentation, vehicles, expenses, intelligence handlers and managers who kept him embedded for years. Even where supervisors did not authorize every abuse, the infrastructure that made sustained abuse possible belonged to the police.

The Undercover Policing Inquiry exists because the scandal could not be contained as a story about individual misconduct. Established in 2015, it is examining undercover political policing in England and Wales beginning in 1968. Its first interim report found that the Special Demonstration Squad’s operations would have been discontinued in the early 1970s had their true scope been known and properly assessed.

The state did not merely pursue groups suspected of serious violence. It accumulated intelligence on lawful political activity, personal relationships and people peripheral to protests. It targeted movements capable of embarrassing institutions, interrupting commercial activity or exposing police racism. The operational category of “extremism” turned opposition to existing power into evidence of dangerousness.

Do Not Invent a Just Stop Oil Case

There is no reliable public evidence establishing that Just Stop Oil was itself created, directed or controlled by British police. Suspicion is not proof, and repeating an unsupported honey-pot claim would make the documented scandal easier to dismiss. The real record requires no embellishment.

Just Stop Oil emerged in 2022, long after Kennedy’s deployment ended. Its confrontational tactics, media visibility and opaque strategic choices have generated accusations from supporters and opponents alike. Those accusations should be investigated, but the existence of earlier infiltration cannot establish the identity of an unknown present-day infiltrator. Historical precedent changes what questions should be asked; it does not answer them automatically.

The proven claim is broader and more consequential. British police built specialized systems for penetrating environmental movements, influencing their internal life and withholding evidence when prosecutions followed. Officers deceived activists into intimate relationships while managers failed to stop them. These institutions demonstrated both the capacity and the willingness to turn political trust into an intelligence asset.

Climate Repression Protects Material Power

The targets reveal the purpose. Climate activists challenge infrastructure owned by energy companies and protected by the state. Their actions threaten schedules, profits, legitimacy and the political fiction that fossil-fuel expansion can continue without coercion. Police infiltration protects that arrangement before uniformed repression becomes publicly visible.

Undercover policing fragments movements by poisoning the trust required to organize. Every friendship becomes suspect. Every committed volunteer can be imagined as an operative. Survivors must spend years reconstructing relationships that the state designed to be false. Even after an officer is exposed, suspicion remains inside the movement as a permanent form of damage.

Britain’s spy-cops scandal is therefore not a warning about what the state might someday do to climate movements. It is the record of what the state already did. The police crossed the line from observation into participation, then relied on secrecy to hide the consequences. No speculative claim about Just Stop Oil is needed. The established facts already show political policing operating as organized state sabotage.

Sources

Mark Kennedy — Undercover Policing Inquiry — October 8, 2025. Official profile of Kennedy and his NPOIU deployment.
Undercover Policing Inquiry: Tranche 1 Interim Report — June 29, 2023. Official findings on the Special Demonstration Squad and political surveillance.
Undercover Policing: Interim Report — House of Commons — March 1, 2013. Parliamentary account of Kennedy’s deployment and the overturned Ratcliffe convictions.
Met and NPCC Statement on Kate Wilson Compensation — January 25, 2022. Police acknowledgement of human-rights breaches and supervisory failures.
At Least 25 UK Spy Cops Had Sexual Relations With Deceived Women — The Guardian — March 2, 2025. Investigation into the scale of deceptive relationships and political surveillance.
Undercover Officer Spied on Green Activists — The Guardian — January 9, 2011. Contemporary investigation into Kennedy’s seven-year infiltration.