Rupert Lowe High Court Challenge Against Parliamentary Watchdog Thrown Out

On 15 May 2026, the High Court ruled that independent MP Rupert Lowe’s (Restore Britain / Great Yarmouth) judicial review challenge against the Independent Complaints and Grievance Scheme (ICGS) is barred by parliamentary privilege and therefore not justiciable by the courts.

Background

The ICGS — established by resolutions of the House of Commons — investigates complaints of bullying, harassment, and sexual misconduct against MPs. A third party (identity protected) made a complaint against Lowe in January 2025. In July 2025, the ICGS decided to proceed to a full investigation.

Lowe launched a judicial review claiming the decision was perverse, unlawful, procedurally unfair, vexatious, politically motivated (linked to his fallout with Reform UK), and affected by apparent bias. His lawyers had previously warned the process could “end his career.”

The Legal Challenge and Today’s Ruling

•  Lowe sought to quash the ICGS’s decision to investigate.

•  In February 2026, he lost an application for an interim injunction to pause the probe (Mr Justice Chamberlain cited strong public interest in allowing the parliamentary process to continue).

•  Today’s 14-page judgment (Neutral Citation: [2026] EWHC 1163 (Admin)) by the same judge, Mr Justice Chamberlain, determined the preliminary issue of justiciability.

Key Excerpts from the Judgment:

•  The ICGS’s duties “fall within the exclusive cognisance of the House of Commons.”

•  Entertaining the claim would require the court to assess whether the complaint was politically motivated or made in bad faith — something reserved for Parliament’s internal framework under the constitutional separation of powers.

•  The court reached no conclusion on the merits of Lowe’s underlying claims.

Lowe’s Response

Lowe described the outcome as “scandalous,” arguing it allows “unqualified and unelected civil servants” to “weaponise parliamentary privilege” and place themselves above the law. He framed the case as a broader effort to “reclaim power for the elected MPs, and therefore the people.”

Context and Next Steps

This is the latest chapter in Lowe’s disputes:

•  Related to earlier workplace complaints in his offices (around late 2024/early 2025) and his acrimonious split from Reform UK.

•  CPS previously dropped related threat allegations against him.

•  The ICGS investigation can now proceed without court interference. Outcomes could range from no further action to sanctions such as a formal warning, apology requirement, or (in serious cases) suspension — though the latter would ultimately be for the House to decide.

Lowe continues to sit as an independent MP and lead Restore Britain. The ruling upholds the principle that internal parliamentary complaints processes are generally shielded from judicial oversight.

This closes one avenue of legal challenge for Lowe but does not resolve the underlying ICGS probe. Further developments are expected from the parliamentary process itself.

Bottom line: Lowe has been cleared on the criminal threats and one standards issue, but the key ICGS probe into workplace conduct allegations remains live and unresolved. He is not cleared overall on the bullying-related matters.