Private investigator

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Private detectives can perform surveillance work for people

Sherlock Holmes, the world's most famous fictional private investigator

A private investigator (often shortened to PI and informally called a private eye), a private detective, or inquiry agent is a person who can be hired by people or groups to investigate legal matters. They often work for lawyers in civil and criminal cases.

Private Investigator Media

• Sherlock Holmes, the world's most famous fictional private investigator

• George Cruikshank - Vidocq arresting Pons.jpg

  1859 illustration of Vidocq arresting a robber after tracking him down

• We never sleep.jpg

  Logo of the Pinkerton National Detective Agency