British killer Simon Hennessey, who escaped from a Gloucestershire prison in 1998 where he was serving a life sentence for murdering his aunt, was recaptured in Australia earlier this month.
Avon and Somerset police hope he will be extradited from Australia where he has been arrested on suspicion of several counts of credit card fraud.
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A police raid uncovered what is believed to be cocaine that had been stashed in nappies, and 40 cannabis plants.
The prince attended the rugby match in his role as patron of the Invictus Games Foundation, the official charity for this year's game.
The prime minister pitched her comments firmly towards unionists in her first campaign visit to Scotland ahead of the general election.