6.5 Crash Investigation, Evidence, Interviews, and CR-3

Key Takeaways

  • Transportation Code Chapter 550 governs collision duties, immediate reports, peace-officer investigation, and written crash reports in the BPOC outline.
  • Crash investigation includes driver and witness interviews, ID collection, vehicle examination, roadway conditions, traffic-control status, measurements, photographs, and physical evidence.
  • BPOC identifies the Texas Peace Officer Crash Report CR-3, vehicle damage guide CR-80, and CR-100 instructions as reporting resources.
  • Citation or custody decisions after a crash should be based on facts, law, and agency policy, not on who appears most upset.
Last updated: May 2026

Crash Facts, Evidence, and Reports

BPOC Chapter 22 objective 22.30 lists Transportation Code Chapter 550 crash-investigation anchors. These include applicability, duties after collisions involving injury, death, vehicle damage, unattended vehicles, structures or highway landscaping, duty to give information and render aid, immediate report, peace-officer investigation, officer collision report, appropriate form, and collision report forms.

Once safety is handled, the officer gathers reliable facts. BPOC interview procedures include identifying operators, injured persons, witnesses, and property owners; separating parties; asking where witnesses were located; asking who operated each vehicle; and locating licenses for injured operators. Observations include speech, balance, injuries, odor, attitude, and possible intoxication indicators.

Investigation itemBPOC examplesExam purpose
PeopleDrivers, witnesses, injured persons, complainants, property ownersIdentify statements and duties
VehiclesEquipment failure, braking, steering, lights, VIN, movement after crashConfirm or test claims
RoadwaySurface, grade, debris, weather, lighting, traffic-control devicesIdentify contributing conditions
Physical evidenceSkid marks, scuff marks, gouges, paint, fluids, tread patternsReconstruct movement and impact
Report formsCR-3, CR-80, CR-100Record required crash information

Measurements are not random. BPOC lists road widths, grade, vehicle positions, skid marks, area of impact, final resting places, and scene sketches. Photographs may be needed when the crash is serious, statements conflict, or physical evidence does not support statements. Evidence such as paint transfer, fluids, tread, and gouge marks can point to direction of travel or a hit-and-run vehicle.

Scenario guidance: two drivers blame each other at an intersection with a damaged signal and conflicting witness accounts. Separate the drivers, identify witnesses, record the status and location of the traffic-control device, document the roadway and line of sight, photograph the scene if needed, measure final rest and impact indicators, and compare statements to physical evidence before deciding enforcement.

BPOC lists common Penal Code charges associated with crash investigation, including manslaughter, criminal negligent homicide, intoxication assault, and intoxication manslaughter. That does not mean every crash is a criminal case. It means serious facts may require criminal-law screening, evidence preservation, and agency or specialist involvement.

Exam trap: do not decide fault based only on the loudest driver or first statement. Another trap is forgetting the CR-3 reporting framework after collecting facts. BPOC objective 22.34 specifically requires recognition of the Texas Peace Officer Crash Report CR-3 and related TxDOT reporting resources.

Study checkpoint: compare statements to physical evidence before selecting charges. The BPOC list of marks, debris, fluids, vehicle positions, control devices, road surface, and witness locations gives the exam its preferred proof chain.

Final review cue: CR-3 work depends on the facts collected at the scene. A clean report begins with clean identification, measurements, statements, and evidence notes.

Test Your Knowledge

Which Transportation Code chapter is the BPOC anchor for collision duties and officer crash reports?

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D
Test Your Knowledge

When does BPOC suggest photographs may be necessary in a crash investigation?

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B
C
D
Test Your Knowledge

What is the Texas Peace Officer Crash Report form identified in BPOC?

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B
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D