In Massachusetts, fault in a car accident is determined through a combination of police reports, witness statements, and evidence from the accident scene. Massachusetts is a “no-fault” state, meaning that each driver’s insurance covers their own medical expenses regardless of who caused the accident. However, determining fault is still crucial for property damage claims and potential lawsuits. Insurance companies will investigate the accident details, including traffic laws, road conditions, and driver behavior, to establish liability. Consulting with a personal injury attorney can also help navigate the complexities of fault determination in Massachusetts car accidents.