In Colorado, fault in a car accident is determined through a combination of police reports, witness statements, and evidence from the accident scene. Colorado follows a “fault” system, meaning the driver responsible for the accident is liable for damages. Insurance companies often conduct their own investigations to assess fault, considering factors like traffic laws, road conditions, and driver behavior. It’s crucial to gather as much evidence as possible, including photos and contact information from witnesses, to support your claim. Consulting with a personal injury attorney can also help navigate the complexities of fault determination and ensure fair compensation.