Investigative officer and Private eye

Private eye and investigative officer are semantically related in detective topic. In some cases you can use "Private eye" instead a noun "Investigative officer".

Private eye noun - A person not on the police force who investigates criminal or illicit activity or searches for missing persons.

Investigative officer and private eye are semantically related in detective topic. You can use "Investigative officer" instead a noun phrase "Private eye".