The Gambling Commission has charged 15 people - including former MP Craig Williams and ex-CCHQ campaigning boss Tony Lee - over bets placed on the timing of the 2024 general election.
Mr Williams was among a number of people linked to the Conservative Party reported to have made bets on the election date, which was called by then-prime minister Rishi Sunak.
The former Montgomeryshire MP admitted at the time to having a "flutter" on the election date just days before it was announced in May last year.
Among others facing charges are Russell George, the Senedd member for Montgomeryshire, and Nick Mason, a former chief data officer for the Conservative Party.
Those charged are:
They are due to appear at Westminster Magistrates Court at 10am on Friday 13 June 2025.
This is a breaking news story. More to follow.