Who is the person who typically requests an investigation?

• A. Suspect
• B. Witness
• C. Defendant
• D. Complainant

Answer: (D)

The person who typically requests an investigation is the complainant—the individual who reports the crime or wrongdoing, often the victim or someone affected, and files the initial report with the police. This report starts the investigative process, as officers collect facts, interview witnesses, and assess what happened. A witness provides information but does not initiate the investigation, a suspect is someone believed to be responsible, and a defendant is charged later in court. Therefore, the complainant is the best answer because they are the one who triggers the investigation by filing the complaint.