The powers of the Mayor of London derive from the Greater London Authority Acts rather than general local government legislation (see the Library briefing paper The Greater London Authority). S/he acts as a strategic and regional coordinator rather than as the leader of a local authority; and the relationship to the London Assembly is not the same as local authority mayors’ relationship to their council. S/he also has ultimate responsibility for transport, policing and fire services in Greater London. However, the boroughs run most public services in London.