Donald Harstad

Donald Harstad is an American novelist and former police officer specializing in crime fiction and police procedurals. Prior to taking up writing, he had a 26-year career with the Sheriff's Department of Clayton County, Iowa, retiring as a Deputy Sheriff. His first novel, Eleven Days, was loosely based on a case he worked on during that time, and he is known for drawing on his career in law enforcement for details of police and investigative procedure.(wiki)