Smash hit

Formalising Sharia "would be wrong democratically and philosophically but it would be catastrophic in terms of social cohesion", he said.

Virtually the only organisation to have come out on Dr Williams's side of the debate was the Islamist group Hizb ut-Tahrir, which said that the media response to the Archbishop's speech could "only be described as a fanatical and emotional outpouring of exaggeration, misrepresentative statements, untruths and sometimes vitriolic hatred".

Dr Williams said yesterday: "It seems unavoidable and, as a matter of fact, certain conditions of Sharia are already recognised in our society and under our law, so it is not as if we are bringing in an alien and rival system."

The latest controversy is the second time that Dr Williams's views on Islam have provoked dispute. In an interview last year with Emel, a Muslim lifestyle magazine, he accused the US of wielding its power in a way worse than Britain at the peak of the Empire, compared Muslims in Britain to the Good Samaritans, and praised the Muslim ritual of praying five times a day. He also said terrorists “can have serious moral goals” and argued that the 9/11 terrorists should not be called evil.

A senior member of General Synod, who asked not to be named, said that he had had high hopes of Dr Williams when he was enthroned five years ago but had now lost confidence in his archiepiscopacy. He thought that he should resign and said that many others were also saying the same thing privately.

Many who heard his lecture last night at the Royal Courts of Justice in London were also critical, although others pleaded for understanding of an Archbishop attempting to instigate debate on an area of international importance.

Ian Edge, who organised the event , is director of the Centre for Islamic and Middle Eastern Law at the School of Oriental and African Studies and a lawyer specialising in Islamic law. He said: "You can get married in your own religious community in the Church of England, but you can't as a Muslim so it seems rather discriminatory. But you wouldn't necessarily want to recognise Islamic divorce, but it may be that once you have admitted one religious right you would have to open it up to the whole spectrum."

Alan Craig, the councillor campaigning against the building of a mega-mosque near the 2012 Olympic site in East London, said "I'm very, very wary of allowing Sharia courts in parallel. “There are real human rights issues under Sharia — women are not equal with men. If he is accepting that Sharia could be ingrafted in British law, it can only be ingrafted if it complies with British law in which case there's no point in ingrafting it."

Dr Doreen Hinchcliffe, Islamic family law expert and visiting lecturer at the School of Oriental and African Studies, said: "His assessment of the situation was great to hear. What he said is working out in terms of Muslims going to counsels to get advice. They have to accept that they live in England, but they shouldn't be discriminated against. It was very astute of him to pick up inheritance for widows —the share for a widow, one eighth, is so small"

Robin Griffith-Jones, the Master of Temple Church, said: "His argument in favour of transformative action will cause controversy but it starts the conversation and reacts against that state of grudging questioning"

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