Investigate vs. Detective — What's the Difference?

Carry out a systematic or formal inquiry to discover and examine the facts of (an incident, allegation, etc.) so as to establish the truth

A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases.

To observe or inquire into in detail; examine systematically

A person, usually a member of a police force, who investigates crimes and obtains evidence or information.

To make a detailed inquiry or systematic examination.

Of or relating to detectives or their work

(transitive) To inquire into or study in order to ascertain facts or information.

Suited for or used in detection.

(transitive) To examine, look into, or scrutinize in order to discover something hidden or secret.

(law enforcement) A police officer who looks for evidence as part of solving a crime; an investigator.

(intransitive) To conduct an inquiry or examination.

A person employed to find information not otherwise available to the public.

To follow up step by step by patient inquiry or observation; to trace or track mentally; to search into; to inquire and examine into with care and accuracy; to find out by careful inquisition; as, to investigate the causes of natural phenomena.

Employed in detecting.

To pursue a course of investigation and study; to make investigation.

Fitted for, or skilled in, detecting; employed in detecting crime or criminals; as, a detective officer.

Investigate scientifically;

One who business it is so detect criminals or discover matters of secrecy.

Conduct an inquiry or investigation of;

A police officer who investigates crimes

An investigator engaged or employed in obtaining information not easily available to the public