A British politician who has campaigned against conscription into the Bermuda Regiment will quit Westminster at the next election.

Labour MP Andrew MacKinlay said on Friday he was resigning because of the UK Parliament's failure to stop a Brit from being extradited to the US for hacking into Nasa and Pentagon computers.

British media reported that the government backbencher was "disillusioned" because his fellow party members failed to vote for a House of Commons motion that could have stopped Gary McKinnon, who has Asperger's syndrome, from being extradited to the States.

Mr. MacKinlay, 60, MP for Thurrock, Essex, was a supporter of Bermudians Against the Draft (BAD), a group of 13 conscripts bidding to get conscription outlawed.

He launched a stinging attack on the Bermuda Regiment in the Commons in 2007, describing it as being in a "parlous state".

The MP visited the Island last year as part of a review of the British Overseas Territories by the UK Parliament's Foreign Affairs Committee.

Premier Ewart Brown described the committee's subsequent report — which recommended phasing out conscription and reviewing the voting rights for long-term residents — as one-sided.