In an SO crash where injury requires ambulance transport, which office investigates?

• A. THI
• B. Internal Affairs
• C. State Patrol
• D. Major

Answer: (A)

Handling traffic crashes with injuries at a sheriff’s office scene is the job of the Traffic/Homicide Investigation (THI) team. This unit specializes in on-scene crash investigations, reconstructing how the crash occurred, collecting evidence, interviewing involved drivers and witnesses, and assessing whether criminal factors such as impairment or excessive speed contributed to the incident. Internal Affairs focuses on misconduct by personnel, not crashes. State Patrol would be a separate agency and not typically responsible for county sheriff’s office crash investigations. The Major division handles high-priority or major-crime cases, not routine traffic crashes. So THI is the appropriate unit to investigate when an on-scene crash involves injuries requiring ambulance transport.