Illinois Crash Investigation & Evidence Preservation

• Preserve vehicle condition, event-data-recorder and telematics evidence.
• Collect law-enforcement, 911, body-camera, dash-camera and dispatch records.
• Identify roadway, weather, signal, surveillance and witness evidence.
• Send targeted preservation notices to owners, employers, insurers, repair facilities and digital-data custodians.

Publication review note — September 17, 2026. Verify Illinois evidence-preservation law and case-specific procedural requirements before publication.