Key facts
- Police are investigating alleged unauthorized access to a political party's database.
- A man was arrested and released pending further inquiries.
- A woman was interviewed under caution.
- The investigation is linked to the founding dispute of Your Party.
London's Metropolitan Police are conducting a criminal investigation into a dispute surrounding the establishment of Your Party, a political group formed in summer 2025 by former Labour figures Jeremy Corbyn and Zarah Sultana. The probe, initiated in September 2025 following a report of alleged unauthorized access to a political party's database, has led to the arrest of one man who has since been released pending further inquiries. A woman has also been interviewed under caution. Sources indicate the investigation is tied to internal conflicts that have strained relations within the party since its inception. The Information Commissioner's Office previously advised that the party's membership portal launch might have involved serious criminal activity and should be reported to the police.