IGP A. A. Khan was both the bane of terrorists and gangsters and the hero of his devoted ATS team. A gun-toting police chief who led from the front, he was also the delight of pun-happy reporters who nicknamed him ‘Ack-Ack’ Khan. His ability to act at moment’s notice and unwillingness to let red-tape or political games delay or deter him, made him both unforgettable and ‘transferable’ in the unwritten history of the Indian Police Force. To sum up in his own words, “I work to please my conscience, not my bosses.