Counterintelligence investigations work on a national and international level to find spies and prevent espionage against the country. Criminal investigations work on a smaller and national level to solve a...

Murder is the killing of one human being by another. It is usually done for personal reason such as love, anger, or greed. An assassination is the murder of an important person which is conducted for political...

Detention is when the police or any authority holds someone under suspicion but have not charged them with a crime. Arrest is when the police charges someone with a crime and then takes them into custody.

Extortion refers to intimidating or threatening the person with violence in exchange for monetary compensation, blackmail, on the other hand, refers to threatening the person with social, emotional, or...

Interpol, short for International Criminal Police Organization, is an intergovernmental body for facilitating international police organization. Europol, short for European Police Office, is a law enforcement...