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Cases / Killings and repression of defenders · United Kingdom · 2011–2026

UK undercover policing of environmental groups

Nature's voice · report
No measurement of the harm done to me here is on record.
Did nature suffer? Not measured.
Not on record
  • The record does not name which of my species, waters, soils or forests were harmed.
What the record lacks: 2 none on record · 1 not measured See the gaps

Mark Kennedy served in the National Public Order Intelligence Unit (NPOIU), and convictions of environmental protesters were quashed because of his role. A tribunal found human-rights breaches in a separate claim against the Met and the NPCC, and a public inquiry has not yet examined the NPOIU.

3 of 1,000+Groups infiltrated by the Special Demonstration Squad vs groups found to pose a credible threat
Tranche 1 interim report of the Undercover Policing Inquiry by Sir John Mitting, 29 June 2023. Kennedy's unit, the NPOIU, falls in Tranche 4, which has not started.

Status As of March 2026: Tranche 3 Phase 2 hearings on environmental groups were held in February–March 2026; the NPOIU, Kennedy's unit, falls in Tranche 4, which has not started, and no findings on it exist.

What?
Undercover policing of environmental groups, including the deployment of Mark Kennedy of the NPOIU, followed by quashed convictions, a tribunal finding of human-rights breaches in a related claim, and a public inquiry that has not yet reached the NPOIU.
Where?
United Kingdom.
When?
Convictions quashed in 2011 and 2014; tribunal finding 30 September 2021; inquiry report 29 June 2023; Tranche 3 Phase 2 hearings February–March 2026. GOV.UK
Who?
Gained
None on record
Lost
  • Environmental protesters convicted in cases later quashed — Ratcliffe-on-Soar protesters (convictions quashed 20 July 2011) and 29 Drax protesters (2014).
Harmed
None on record
Why?
Not established in the sources reviewed; the inquiry has made no findings on the NPOIU.
How?
Not established in the sources reviewed; the NPOIU falls in Tranche 4 of the inquiry, which has not started.
6 of 6 questions answered from the record

What happened

The record, in order.

The Undercover Policing Inquiry published its Tranche 1 interim report, by Sir John Mitting, on 29 June 2023. It found that the Special Demonstration Squad (SDS) should have been closed in the 1970s, and that of more than 1,000 groups infiltrated only 3 posed a credible threat.

Convictions of environmental protesters were quashed because of Mark Kennedy's role. Those of the Ratcliffe-on-Soar protesters were quashed on 20 July 2011 for non-disclosure, and those of 29 Drax protesters in 2014. On 30 September 2021 the Investigatory Powers Tribunal found breaches of Articles 3, 8, 10, 11 and 14 of the European Convention on Human Rights in the claim of Kate Wilson against the Met and the NPCC (case IPT/11/167/H), and later made a remedy order of £225,971.96.

Tranche 3 Phase 2 of the inquiry heard evidence on environmental groups in February and March 2026. The NPOIU, the unit Kennedy belonged to, falls in Tranche 4, which has not started.

  1. 201120 July: convictions of the Ratcliffe-on-Soar protesters quashed for non-disclosure
  2. 2014Convictions of 29 Drax protesters quashed
  3. 202130 September: Investigatory Powers Tribunal finds breaches of ECHR Articles 3, 8, 10, 11 and 14 in Wilson v Met / NPCC
  4. 2022Remedy order of £225,971.96 in the same case
  5. 202329 June: Undercover Policing Inquiry Tranche 1 interim report
  6. 2026February–March: Tranche 3 Phase 2 hears evidence on environmental groups; Tranche 4 (NPOIU) not started

How it looked

What was shown, beside what was recorded.

Shown

    Recorded

    • Tranche 1 interim report (29 June 2023, Sir John Mitting): the SDS should have been closed in the 1970s; of more than 1,000 groups infiltrated, only 3 posed a credible threat.
    • Investigatory Powers Tribunal, 30 September 2021 (Kate Wilson v Met / NPCC, IPT/11/167/H): breaches of ECHR Articles 3, 8, 10, 11 and 14; remedy order of £225,971.96.
    • Convictions quashed because of Kennedy's role: Ratcliffe-on-Soar protesters, 20 July 2011, for non-disclosure; 29 Drax protesters, 2014 (secondary report).
    • Tranche 3 Phase 2 (February–March 2026) heard evidence on environmental groups; the NPOIU falls in Tranche 4, which has not started (secondary report).

    In court and with insurers

    Every proceeding and every insurer decision on record.

    Lawsuits and rulings

    1. 2021-09-30Claimant won£225.97bn Remedy order
      Kate Wilson v Met / NPCC (IPT/11/167/H)
      Investigatory Powers Tribunal · Civil · Kate Wilson → The Met and the NPCC

      On 30 September 2021 the Tribunal found breaches of ECHR Articles 3, 8, 10, 11 and 14. A remedy order of £225,971.96 followed. Investigatory Powers Tribunal

    2. 2011-07-20Overturned on appeal
      Quashing of the Ratcliffe-on-Soar protesters' convictions
      not on record · Appeal · Prosecution (not further identified in the sources reviewed) → Ratcliffe-on-Soar protesters

      The convictions were quashed on 20 July 2011 for non-disclosure, because of Kennedy's role.

    3. 2014Overturned on appeal
      Quashing of the convictions of 29 Drax protesters
      not on record · Appeal · Prosecution (not further identified in the sources reviewed) → 29 Drax protesters

      The convictions were quashed in 2014 because of Kennedy's role. the sources reviewed marks this item as coming from a secondary source.

    Insurers

    No insurer decision on record.

    What nature saw

    Outcomes measured on the ground, and nature's note.

    Nature's report opens this page. Below: further outcomes measured on the ground.

    Groups infiltrated (SDS)
    1,000+
    Tranche 1 interim report, 29 June 2023
    Groups found to pose a credible threat
    3
    Same report
    Remedy ordered in Wilson v Met / NPCC
    £225,971.96
    Investigatory Powers Tribunal

    What we don't know

    Undisclosed, unproven, untried: recorded as data.

    Nature

    • Not measured Harm to nature: The record holds no measurement of harm to nature.

    Record

    • None on record The Undercover Policing Inquiry has made no findings yet on the infiltration of environmental groups after 1993, or on the NPOIU.
    • None on record The NPOIU falls in Tranche 4 of the inquiry, which has not started.

    Did the harm stop?

    Who paid?

    A remedy order of £225,971.96 was made in the Wilson claim against the Met and the NPCC; the sources reviewed does not say who paid or whether it was paid.

    Sources

    Voices on record: — Company or project✓ Government and regulators✓ Courts— Press and investigations— Communities and civil society— Researchers

    Government and regulators

    Courts

    1. Kate Wilson v Met / NPCC, IPT/11/167/H: Remedy Order
      Investigatory Powers Tribunal · 2022-01-24

    Law and courts

    European Court of Human Rights (ECHR)
    The Council of Europe's court in Strasbourg, which rules on complaints that a state has violated the European Convention on Human Rights.