French Connection — Robin Moore

The French Connection is an account of a narcotics case told as it actually happened. The story is spread over many suspense-filled months and involves plush Manhattan night clubs, dark tenements in Brooklyn and the Bronx, tree-lined suburbs on the upper East Side, Paris, Marseilles and Palermo. The case involved criminals both American and French, including Jean Jehan, director of the world's largest heroin network, and Jacques Angelvin, a famous French television star.
Moore and his assistant spent many hundreds of hours interviewing the New York and Federal officers involved and listening to recorded conversations, orders and counterorders.