It is the policy of the City of Miami Police Department’s Traffic Crash Investigations Unit, to provide emergency assistance to persons involved in traffic crashes, protect the crash scene, conduct on scene and follow-up investigations and take necessary enforcement action.

The Traffic Crash Investigations Unit is an element within the Investigation Division's Criminal Investigations Section. The Traffic Crash Investigations Unit investigates all crashes that occur within the City of Miami that result in either serious bodily injuries and/or death, as well as all hit and run crashes. The Traffic Crash Investigations Unit is comprised of two details: The Traffic Homicide Detail and the Hit and Run Detail. Detectives in this unit have received extensive training in crash and Driving Under the Influence (DUI) investigations.

The Traffic Homicide Detail handles all crashes that involve either serious bodily injuries and/or death. Detectives respond to crash scenes and conduct investigations which include: scene measurements, interviews of all parties involved, and photographs of the scene, along with the Miami Police Crime Scene Investigations Unit. They also conduct criminal investigations if a driver is DUI, not a licensed driver, was driving recklessly causing the crash, or is a driver that has fled the scene of a crash.

The Hit and Run Detail handles all follow-up investigations to every hit and run crash within the City of Miami that doesn't involve serious bodily injuries and/or death.