# UK National Security Adviser's Wife Backs Proscribed Group, Prompting Police Review

> Sarah Helm, wife of UK National Security Adviser Jonathan Powell, publicly expressed support for Palestine Action on October 15, 2026, prompting a police review into her comments about a group proscribed as a terrorist organization since July 5, 2025.

By PrimaryBrief newsroom · Published 2026-10-17T01:05:56.026332Z
Canonical: https://primarybrief.com/article/uk-national-security-adviser-s-wife-backs-proscribed-group-prompting-police-review-597ec1b3

Sarah Helm, wife of UK National Security Adviser Jonathan Powell, publicly expressed support for Palestine Action on X on October 15, 2026, prompting a police review into her comments about the group proscribed as a terrorist organization since July 5, 2025 [9][14][21]. Helm's statement placed significant pressure on her husband, Jonathan Powell, creating scrutiny around his security clearance, because government guidance links a spouse's association with a proscribed group to national security risks [1][5][9]. This incident has intensified the debate in the UK regarding freedom of expression and the application of counter-terrorism legislation, particularly as the ban on Palestine Action faces an upcoming Supreme Court appeal [13][18]. The public remarks by a close family member of a top national security official concerning a banned organization create a dilemma for Downing Street and the Metropolitan Police [8][9].

## What the records show
On October 15, 2026, Sarah Helm, an author and journalist, posted on X in defense of novelist Sally Rooney [9][17]. Rooney had announced she would no longer sell her books in the UK, intending to direct royalties to Palestine Action [3][9]. Helm wrote, “God help us authors who support Palestine and Palestine Action” [9][11][17]. Palestine Action was officially proscribed as a terrorist organization in the UK under the Terrorism Act 2000 on July 5, 2025 [14]. This proscription makes it a criminal offense to be a member of, or to invite or recklessly express support for the group, with potential penalties up to 14 years in prison [9][11][14]. The Metropolitan Police confirmed on October 16 that officers are assessing her social media post to determine if further investigation is required [5][21].

## The timeline
Palestine Action was proscribed on July 5, 2025 [14]. An initial High Court ruling in February 2026 found this ban unlawful, but the Court of Appeal overturned that decision in June 2026, upholding the proscription as lawful [13][23]. The Supreme Court has granted permission for an appeal regarding the ban, scheduled to be heard on November 4 and 5, 2026 [13]. Sarah Helm made her public statement on October 15, 2026 [9].

## What changed and for whom
The police review of Helm's comments has created significant pressure on her husband, Jonathan Powell, the UK National Security Adviser [9]. Government guidance for security clearances states that being married to someone tied to a proscribed terrorist organization is viewed as an “automatic, unmitigated national security risk” and would “normally result in the revocation of security clearance” [1][5][9]. Powell, in his role, requires the highest level of security clearance, known as Developed Vetting [7].

## What the subject has said publicly
Downing Street has distanced itself from Sarah Helm's remarks. On October 16, 2026, a spokesperson stated that Helm's views “are held by an individual who does not represent the government in any capacity” [8][10][11]. No information has been made public about Sarah Helm or Jonathan Powell making further statements regarding the police review or the implications for his role.

## What we could not confirm

## Evidence cited
1. UK national security adviser under pressure over wife’s comment on supporting Palestine Action (www.theguardian.com) — https://www.theguardian.com/uk-news/2026/oct/16/uk-national-security-adviser-jonathan-powell-sarah-helm-sally-rooney-palestine-action
2. UK PM adviser’s wife expresses ‘support’ for Palestine Action (www.aljazeera.com) — https://www.aljazeera.com/news/2026/10/16/uk-pm-advisers-wife-expresses-support-for-palestine-action?traffic_source=rss
3. Sally Rooney Withdraws Her Books From UK Over Her Support of Palestine Action (www.nytimes.com) — https://www.nytimes.com/2026/10/14/world/europe/rooney-britain-palestine-book-sales.html
4. UK PM adviser’s wife expresses ‘support’ for Palestine Action (www.aljazeera.com) — https://www.aljazeera.com/news/2026/10/16/uk-pm-advisers-wife-expresses-s%20upport-for-palestine-action?traffic_source=rss
5. Police Review National Security Adviser's Wife's Palestine Action Post (suaragarut.id) — https://suaragarut.id/
6. Met Police assess Sarah Helm post backing Palestine Action, a banned group. London police are reviewing an X post by the wife of UK national security adviser Jonathan Powell that appeared to back a group Britain has proscribed as terrorist. (israel.com) — https://israel.com/
7. Jonathan Powell, UK National Security Advisor - DV security vetting/assessment - a Freedom of Information request to Home Office (whatdotheyknow.com) — https://whatdotheyknow.com/
8. Downing Street distances itself from adviser’s wife’s support for Palestine Action (dawn.com) — https://dawn.com/
9. National security adviser Jonathan Powell faces intense Whitehall scrutiny after his wife, author Sarah Helm, backed banned group Palestine Action. (dazzlingdawn.com) — https://dazzlingdawn.com/
10. Police assessing Sarah Helm’s Palestine Action post as hundreds of writers condemn restrictions forcing Sally Rooney from Britain’s market (palestinechronicle.com) — https://palestinechronicle.com/
11. Wife of UK national security adviser accused of ‘gobsmacking’ support for Palestine Action (thejc.com) — https://thejc.com/
12. Proscribed terrorist organisations (www.gov.uk) — https://www.gov.uk/
13. Palestine Action - Wikipedia (wikipedia.org) — https://wikipedia.org/
14. Palestine Action proscribed - ProtectUK (protectuk.police.uk) — https://protectuk.police.uk/
15. Treasury Sanctions Individuals and Entities Across Europe and Asia for Supporting Iran’s Terror Proxies (treasury.gov) — https://treasury.gov/
16. Log in or sign up to view (facebook.com) — https://facebook.com/
17. UK security adviser's wife draws police review for backing proscribed Palestine Action (timesofisrael.com) — https://timesofisrael.com/
18. Wife of national security adviser backs Palestine Action (thenational.scot) — https://thenational.scot/
19. Wife of UK National Security Adviser backs Palestine Action (middleeasteye.net) — https://middleeasteye.net/
20. UK Police Review Social Media Post by National Security Adviser's Wife Over Banned Palestine Action Group - Belaaz News (belaaz.com) — https://belaaz.com/
21. UK police assess Sarah Helm's post on Palestine Action support (news.az) — https://news.az/
22. UK national security adviser's wife under police review for supporting Palestine Action (ynetnews.com) — https://ynetnews.com/
23. UK Court of Appeal Upholds Ban on Palestine Action, Reversing High Court Ruling - Human Rights Research (humanrightsresearch.org) — https://humanrightsresearch.org/
24. UK Court of Appeal Upholds Palestine Action Ban | Legal Setback for Activist Group - YouTube (youtube.com) — https://youtube.com/
25. UK Court of Appeal Upholds Proscription of Palestine Action as Terrorist Organization | ASIL (asil.org) — https://asil.org/
26. Palestine Action: What does the Court of Appeal judgment mean for protest and terror laws? (libertyhumanrights.org.uk) — https://libertyhumanrights.org.uk/
27. UK’s Ban on Palestine Action Prompts Debate Over Free Speech After Sally Rooney Withdraws Her Books (time.com) — https://time.com/
28. Palestine Action co-founder wins right to appeal against ban at supreme court (theguardian.com) — https://theguardian.com/
29. Supreme Court grants permission to appeal Palestine Action terrorism proscription | Garden Court Chambers (gardencourtchambers.co.uk) — https://gardencourtchambers.co.uk/