Internal affairs units are responsible for which type of investigations?

• A. External Investigations
• B. Internal Investigations
• C. Community Investigations
• D. Traffic Investigations

Answer: (B)

Internal affairs units focus on investigating misconduct by members of the police department themselves. They handle inquiries into officer corruption, improper use of authority, policy violations, and other forms of internal wrongdoing to determine what happened and what discipline or corrective action is appropriate. This internal focus is what sets them apart from other investigation types: external investigations are conducted by outside bodies, traffic investigations deal with crashes and driving violations, and “community investigations” isn’t a standard category in police practice.