Tue, 19 May 2026
Hunch
UK party funding10 Sep 2026

Police widen Reform UK funding inquiry. Will anyone be questioned by 9 October?

London's Metropolitan Police say the Channel 4 claims join their inquiry into Reform UK's funding. So far no arrests and no formal interviews.

4 min read

What happened

The Metropolitan police said on that reports it received after a Channel 4 News undercover film about donations and polling involving Reform UK disclose potential offences, that these will be folded into its existing investigation into the party’s funding, and that detectives are seeking the broadcast footage while liaising with the Electoral Commission and the Crown Prosecution Service.

Police have widened a criminal inquiry into Reform UK’s funding. Detectives from London’s Metropolitan Police looked at reports made after a Channel 4 News undercover film shown on . They judged that there are possible offences to investigate, and added them to work the force’s special enquiry team already had under way.

The Met stressed that no one has been arrested and no one has been interviewed under caution, a formal police interview of a suspect, over the new claims. Everything in the file is treated as a possible offence under the Political Parties, Elections and Referendums Act 2000.

The inquiry it joins is older. The Met opened it in after a referral from the Electoral Commission, the elections watchdog. It looks at donations made to a party before the election and at possible offences under section 61 of the same Act.

George and Fiona Cottrell went to voluntary interviews under caution, which became public on , seventeen months after the inquiry began. Reform denies wrongdoing and says it will cooperate.

Two things stand between the film and any charge. Detectives must get the footage that was not broadcast and the notes behind it. Prosecutors then have to prove that someone knowingly acted to hide where the money came from.

That test is rarely met. Between 2011 and 2021 the Electoral Commission referred eight cases to the Met, and none led to a charge. The Commission says it is also considering its own regulatory steps alongside the police.

Sources: Guardian (2), BBC (2)

The Pattern

We looked for UK criminal inquiries into the money behind a party or campaign since 2006, confirmed in public by a police force or the National Crime Agency on a known day. We found eight. In two of them, someone was arrested or interviewed under caution within 30 days.

2 of 8
Two of the last eight UK criminal inquiries into party or campaign funding produced an arrest or an interview under caution within 30 days of being confirmed: cash-for-honours in 2006, where Des Smith was arrested on day 23, and the Met's Reform inquiry in July 2026, where the Cottrell interviews surfaced the day after the force confirmed the case. That is the whole record found for 2006 to 2026, so the base rate is 2 of 8 on the full count as well. The 30-day window is a test of visible movement, not of outcome: Operation Branchform took 21 months to its first arrest, the Abrahams file took seven months to reach the CPS, Peter Hain waited ten, and between 2011 and 2021 the Electoral Commission referred eight cases to the Met without a single charge (BBC News, 5 Sep 2026). Of the eight cases here, none had produced a charge within a year.
2026 Met Police, Reform UKheld
The Met confirmed on that it was investigating donations to Reform UK before the 2024 election, and the following day George and Fiona Cottrell were reported to have been interviewed under caution. (theguardian.com)
2021 Police Scotland, SNPnot held
Police Scotland began investigating what happened to £670,000 raised by the SNP in the summer of 2021, and made its first arrest, of the former chief executive Peter Murrell, on . (BBC News)
Show the other 6 cases
2018 National Crime Agency, Leave.EUnot held
The National Crime Agency announced on that it was investigating Arron Banks, Elizabeth Bilney and Leave.EU over £8m of funding, and closed the case in having found no evidence of criminal offences. (National Crime Agency)
2018 Met Police, Vote Leavenot held
The Electoral Commission fined Vote Leave and reported it and the BeLeave campaign to the Met on ; the police investigation was still open, with no arrests reported, in . (The Guardian)
2018 Met Police, Leave.EUnot held
A Met investigation into Leave.EU’s referendum spending, opened after the Electoral Commission’s fine of , ended on with no further action against the campaign or its responsible person. (The Guardian)
2008 Met Police, Peter Hainnot held
The Electoral Commission referred £103,000 of late-declared donations to Peter Hain’s deputy leadership campaign to the Met on ; he resigned that day and the CPS ruled out charges ten months later. (BBC News)
2007 Met Police, Labour donorsnot held
The Met began a criminal inquiry on into donations made to Labour through proxies for the developer David Abrahams; the file reached the CPS in and no charges followed in 2009. (The Guardian)
2006 Met Police, cash for honoursheld
The Met opened its cash-for-honours inquiry in after a complaint about peerages for Labour lenders, and arrested the schools adviser Des Smith on . (The Guardian)

The Read

History points to nothing visible by . In six of the eight past inquiries, no one was arrested or interviewed under caution in the first month. The Met says it must first get the Channel 4 footage before it can interview anyone about it. The same force took seventeen months to reach such interviews in the part of this case it opened in .

There are reasons it could move faster, which is why the price sits at 25% and not lower. The team is already in place and has been briefed by the Crown Prosecution Service (CPS). Verbatim says it will cooperate with the police. Two named aides have left the party and have a reason to answer questions early. History would be wrong if the footage is handed over quickly and one of them goes to a voluntary interview under caution within the month.

There is also a reporting problem. Detectives can work without confirming anything in public, so the market can settle NO while the inquiry moves forward.

Disclaimer

Hunch works only from sources that are publicly available, and publishes on the basis of analysis of that material. We do not form an editorial opinion or take sides, we give a simpler and wider view of news that already exists. If information in a source we used was inaccurate, distorted, or later disputed but had already entered our analysis, Hunch accepts no liability for that. Predictions are not advice. Phase 1 markets use Hunch Points, not money.

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