Civil rights and community groups last night criticised a proposal by British Prime Minister Tony Blair to give police broad powers to stop and question people as part of a new anti-terrorism law.

Critics said the proposed measure risked alienating the Muslim community whose support the government needed to combat militants and an opposition politician said Blair was pushing for the powers of a police state.

An interior ministry spokeswoman said the government was looking at including the "stop and question" power in new anti-terrorism legislation.

It would enable police to question people about who they are, where they have been and where they were going, according to the Sunday Times newspaper.

Plans for the measure emerged as Blair, who is due to resign in a month, attacked as a "dangerous misjudgment" Britain's determination to defend civil liberties rather than take tougher action to counter extremists.

"We have chosen as a society to put the civil liberties of the suspect, even if a foreign national, first. I happen to believe this is misguided and wrong," he wrote in the Sunday Times.

Police Minister Tony McNulty said the government would consult widely on its proposals before introducing new legislation in October or November - by which time Blair will have handed over power to finance minister Gordon Brown.

Mohammed Shafiq, spokesman for the Ramadan Foundation, a British Muslim youth organisation set up to counter extremists, voiced concern it would be mainly minority communities that would be stopped and questioned under the proposed new powers.

"We feel that the government's proposals are going to alienate the Muslim community further," he said.

Doug Jewell, of civil rights group Liberty, told the BBC the measure was unnecessary and would be counter-productive.

PHOTO CAPTION

Prime Minister Tony Blair steps out of 10 Downing Street in London, 24 May 2007. (AFP)