Line of Duty Author:Ernest Tidyman A killer cop. He worked both sides of the street. The Mafia side. And his own. It was a hell of a way to live.To be Officer james Dempsey. A cash-on-the-line hitman for the mob. Who doctored the evidence. And tried to stay one step ahead of the law and his follow officers. LINE OF DUTY A violent novel of blood and gore by the author of SHAFT, E... more »rnest Tidyman. "A hard-boiled thriller.... Neatly Taut right to its deadly finale." publisher weekly« less