British Muslim leaders called on the government to establish a national body to oversee mosques and imams as part of efforts to combat extremism following the July bombings in London. Working groups advising the government said that the proposed National Advisory Council of Imams and Mosques could recommend ways for mosques to prevent extremism, train Imams and encourage British-born Muslims to become clerics. Lord Ahmed, a Labour Party member of the House of Lords who headed one of the groups on Thursday, said that 1,700 of the estimated 2,000 Imams in Britain were educated and trained abroad. “As British Muslims we need to be prepared to modernise the way we operate, encouraging integration and helping our children to feel proud to be British,” he said. “I and my colleagues believe that the establishment of this Advisory Council is an important step towards this goal.” European governments seeking to counter the spread of extremism within some mosques are concerned that sermons are often not conducted in the country’s predominant language and that many clerics come from abroad rather than from local Muslim communities. The Dutch government earlier this year revoked the residency permits of three Imams whom it accused of preaching hate. In France, where a third of the 1,200 Imams do not speak French, Interior Minister Nicolas Sarkozy recently called for better oversight of mosques in order to root out radicals.