Informally, and primarily in fiction, a detective is any licensed or unlicensed person who solves crimes, including historical crimes, by examining and evaluating clues and personal records in order to uncover the identity and/or whereabouts of the criminal.
In some police departments, a detective position is achieved by passing a written test after a person completes the requirements for being a police officer. In many other police systems, detectives are college graduates who join directly from civilian life without first serving as uniformed officers. Some people argue that detectives do a completely different job and therefore require completely different training, qualifications, qualities and abilities than uniformed officers. The opposing argument is that without previous service as a uniformed patrol officer, a detective cannot have a great enough command of standard police procedures and problems and will find it difficult to work with uniformed colleagues.
Detective is a novel by Arthur Hailey. It was written in 1997 and it was the author's last book. Hailey depicts the work of the homicide department and its background and investigation methods.
Detective is the story of Miami Police detective Malcolm Ainslie, who had previously trained to be a Catholic priest. A serial killer breaks free in Miami. He is a religious freak and he starts killing people feeling that he is the avenger of God. He leaves certain things at the murder scenes that are symbols from the Book of Revelation.
Miami Police Detective Sergeant Malcolm Ainslie and his team start to investigate the murders. They eventually find the killer and arrest him. The murderer is nicknamed The Animal because he kills in such a barbaric manner. Now, when this man is about to be executed for the serial killings he did, he calls for Malcolm. 30 minutes before his execution he confesses to Malcolm that he did all the serial killings he is accused of except one, which was not done by him.