detective

A detective, or criminal investigator, is a person who investigates criminal or illicit activities and searches for missing persons. This role can be filled by individuals on the police force or by private investigators who are licensed to conduct such work.1234

Criminal investigation involves studying crimes and apprehending criminals by identifying their methods, motives, and identities, as well as those of the victims. Investigators may analyze modus operandi, compile data on stolen property, and utilize public and private records. Modern investigation also heavily relies on electronic surveillance, interrogation of suspects, and forensic sciences, including techniques like fingerprinting and DNA analysis. Crime laboratories play a crucial role in analyzing physical evidence collected from crime scenes.56