PROSECUTORS have rebuffed claims the case against Madeleine McCann suspect Christian B is set to crumble after British investigators allegedly found he has an alibi.

       A team led by an ex-detective claim to have discovered the sex predator, 44, was “30 minutes away” from the resort in Praia da Luz, Portugal, when Madeleine disappeared.

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       The case against Madeleine McCann prime suspect Christian B is set to crumble after British investigators found he has an alibi 2

       A new TV programme is set to show Christian B's alibi 'stacks up'

       Details of its probe will be in a Channel 5 documentary Madeleine McCann: Investigating the Prime Suspect airing this spring.

       It is set to demolish the case against Christian B, who is in jail in Germany where authorities have said he killed her.

       Phone records were said to show him near the scene the night she vanished aged three in 2007.

       But the new probe led by former Surrey Police detective Mark Williams-Thomas, is said to show an alibi for B “stacks up”.

       But German authorities have dismissed the claims.

       Prosecutor Hans Christian Wolters told the Daily Mirror: “If I had an alibi and was accused of this, I would say it. But I have heard no such claims from [Christian B] or his lawyer.”

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       The TV team, who spent months in Portugal and Germany, found new witnesses in both countries who throw his guilt into doubt.

       A source said: “They have concluded B could not have snatched Madeleine. He was 30 minutes away and was not on the phone in Praia da Luz the night she vanished.”

       Last year a friend of the convicted paedophile gave him a possible alibi.

       But she later told a German paper she could not recall if she was him the night Madeleine vanished.

       German Prosecutors hope to charge Christian B, 45, with raping a 20-year-old Irish waitress in Portugal’s Algarve in 2004.

       He is already in jail term for horrifically raping a pensioner in Praia da Luz in 2005.

       But he denies involvement in Madeleine’s disappearance and has refused to speak to investigators.

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