Hounslow, Ealing and Hillingdon are among the first London boroughs to be brought together under a new policing structure.
The Hounslow Borough Commander, Raj Kohl, becomes the new Neighbourhoods Superintendent for all three boroughs.
A new Basic Command Unit (BCU) covers all three boroughs; its commander is Paul Martin who has been the Ealing commander for some years and has been involved in the pilot stages of the new BCU structure.