Osman Iqbal, 37, pictured, earned a modest salary as a sergeant in a team that responded to 999 calls in Kings Heath, Birmingham.
However, he was also the lynchpin of a mob that ripped off those who ran brothels and peddled class A drugs in exclusive areas of London.
Colleagues raised suspicions when Iqbal arrived for work in the exclusive Ferrari 458 supercar and an anti-corruption team began investigating his bank accounts.
Iqbal is now serving a jail sentence of seven years and two months after being imprisoned last September with seven other gang members.
He admitted conspiracy to manage a brothel, conspiracy to money launder and conspiracy to possess Class A drugs.
Iqbal, from Ward End, Birmingham, pleaded guilty and admitted making unauthorised attempts to access police intelligence systems while serving with West Midlands Police. A court last September heard how Iqbal was caught when the Serious and Organised Crime Unit linked him with convicted armed robber Talib Hussain, 33.
The bank accounts of the companies were being used by the pair to launder hundreds of thousands of pounds.
