Muslim Sharia law would undermine society if it was introduced in Britain, Conservative leader David Cameron said today.
His words put him at odds with the Archbishop of Canterbury Rowan Williams who earlier this month suggested some element of Sharia law was unavoidable.
Mr Cameron said it would in fact lead to a "legal apartheid".
He added that "state multiculturalism" was also the wrong way to tackle integration.
He said: "I don't believe that by introducing Sharia law, we will make Muslims somehow feel more British - more content with life here and more happy to work for a common good.
"In my view the opposite is the case: I think it would be to head in the wrong direction. The reality is that the introduction of Sharia law for Muslims is actually the logical endpoint of the now discredited doctrine of state multiculturalism instituting, quite literally, a legal apartheid to entrench what is the cultural apartheid in too many parts of our country.