India, July 18 -- Somewhere out there is a fake police uniform still at large. But the man who wore it - a constable who 'promoted' himself as an IPS officer and spent 15 years living a double life in the police force - has finally been arrested.

Mohammad Gaus Ibrahim Khatib, 54, a former national-level kickboxer and a constable with the Government Railway Police (GRP), amassed a fortune posing as an assistant commissioner of police (ACP) and later as a deputy commissioner of police (DCP) with the Mumbai police force. Over the years, he is suspected to have swindled scores of vulnerable businessmen, job seekers and others.

As a 'DCP', Khatib officiated at various events and award functions, rubbing shoulders with Bollywood stars like Am...