Quest Engineering provides expert forensic seatbelt analysis to evaluate restraint usage, belt performance, and occupant interaction during a collision.

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In-Depth Physical Component Inspections

Determining whether a restraint was worn or if it malfunctioned requires a detailed physical inspection. Our forensic engineers systematically examine vehicle safety components for physical evidence of use, loading, damage, or failure, including:

• Webbing, latch plates, and buckles

• Retractors, anchorages, and tensioners

• Pretensioners and load limiters

• Electronic warning systems and diagnostic codes

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A Holistic Evidence-Based Approach

Because no single physical indicator should automatically determine seatbelt usage, Quest Engineering evaluates the complete ecosystem of a crash. When appropriate, our restraint system analysis integrates:​

• Accident reconstruction and collision dynamics

• Event Data Recorder (EDR) information

• Occupant kinematics and interior vehicle contacts

• Medical findings, injury mechanisms, and vehicle photographs

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Answers

Our systematic, technically grounded approach provides clear, objective answers to vital legal and insurance questions:

• Restraint Usage: Was the seatbelt actually being worn at the time of the impact?

• System Performance: Did the seatbelt and airbag systems function properly?

• Injury Mitigation: How did the use or non-use of the restraint system relate directly to the occupant’s movement and injury mechanisms?