'Investigator' may refer to:
★
Clinical investigator, an investigator involved in a clinical trial
★
Detective, a person who investigates crimes, can be a rank and job in a police department or a civilian called a private detective
★
Investigator Strait, a body of water lying between Yorke Peninsula, on the Australian mainland, and Kangaroo Island in South Australia
★
New investigator, a designation for less experienced researchers
★
Principal investigator, the lead scientist for a particular well-defined science project
★
Private investigator, a person who is does not work for the police or government who undertakes investigations
★
UN Special Investigator, a United Nations appointee, charged with investigations or auditing in a specific matter
★ [SCOTUS ARTICLE III INVESTIGATOR]], an administrive judge who can investigate or rule on corruption in any lower court and administrative jurisdiction, and without error of impunity operate under the authority of Article III of the Constitution of the United States. A traffic cop of court, an evidenciary investigation of substantive law performed by the Article III disrupts judiciary corruption and white collar criminals that attempt to operate beyond their legal jurisdiction, and includes actions of mediation antecedant to any potential recalcitrant class struggles that could occur within the equitable jurisdiction limits of State and Federal Constitutional Law.