D E T R O I T P O L I C E D E P A R T M E N T
M A N U A L
204.1 Crash Investigation
2013
3. A district/precinct fatal trained traffic crash officer shall conduct an on-
scene investigation, complete witness statements and any additional
reports as needed;
4. Ensure that the traffic crash scene is clear of all non-police or unauthorized
personnel;
5. Ensure that the traffic crash scene is safely blocked off to the public (i.e.
road closures, cones placed, and properly positioned marked vehicles);
6. Ensure that at the conclusion of the traffic crash scene, vehicles are towed
to either Gene’s Garage or #1 Auto Pound;
7. Ensure that proper clean-up is conducted by the tow companies removing
the vehicles from the traffic crash scene (Tow companies which fail to
properly clean the roadway in affected areas and ensure the road is safe
for travel, will be responsible for a civil infraction);
8. Ensure that there is no debris or items placed inside the vehicles (plastic
particles, tires, dirt, glass, etc) which can contaminate any evidence;
9. No members of the department shall remove any items from a vehicle nor
shall any vehicles or property be released without written approval from
the homicide crash investigator;
10. Completing a detailed UD-10 report;
11. Document the names, addresses and telephone numbers of all witnesses;
12. Document the names, badges and assignments of all responding officers,
Detroit Fire Engines and Squads, Emergency Medical Service (EMS) Units
and Medical Examiners;
13. Document all drivers and passengers that were involved in the vehicles on
the UD-10 including names, addresses, telephone numbers, operator
license numbers of drivers, birth date, race, sex and position of all
occupants in the vehicle. This information will also be included in the
completed fatal package(s); and
14. Ensure that CRISNET reports are completed by every responding officer (if
applicable).
In addition, the officer preparing the necessary reports is responsible for ensuring hand
delivery of the reports to Homicide immediately upon completion and prior to going off-
duty. (The district/precinct desk supervisor shall also be responsible for ensuring that
all necessary reports are delivered immediately upon completion to Homicide.)
204.1-7 Crashes Involving Intoxicated Drivers
1. When an investigating officer of a motor vehicle crash has probable cause to
believe that an involved driver’s ability to operate a motor vehicle is impaired due to
intoxicants, medication, or narcotics, the officer shall immediately detain the driver
and prohibit the driver from operating the vehicle.
2. If the driver is not injured, field sobriety evaluations shall be given followed by a
Preliminary Breath Test (PBT) and a Breathalyzer test, if applicable.