Police chiefs in Britain have reacted sceptically to plans for a former leading US police official to advise the government.
David Cameron has called for former New York Police Commissioner and Los Angeles police chief Bill Bratton to help address violence in English cities.
Association of Chief Police Officers head Sir Hugh Orde said: ''I am not sure I want to learn about gangs from an area of America that has 400 of them.''
Home Secretary Theresa May said Mr Bratton was to be consulted as part of a process of learning from people around the world who had experience of tackling gang culture.
The BBC reports there has been friction between ministers and senior police in the aftermath of last week's nights of rioting.
Mr Cameron has suggested the police were too timid and had too few officers on the ground, in their early efforts to tackle the riots. Senior officers reject that.
