Sadiq Khan says new Met commissioner must admit to force’s failings

London mayor says appointee must understand extent of cultural and organisational problems' in Met

The London mayor, Sadiq Khan, has warned the candidates wanting to lead the Metropolitan police they must publicly admit the force's systemic failings, with formal interviews due to begin next week.

Two senior police figures have reached the final stages of the process to be the commissioner of Britain's biggest and most controversial force.