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How Chicago determines fault in car accidents

On Behalf of | Sep 26, 2025 | Personal Injury

Getting involved in a car accident in Chicago is often unpredictable. While you may practice safe driving on the road, you cannot guarantee that others are doing the same. If you experience a crash, understanding how courts determine who is at fault can help you navigate the complex process.

Key factors in determining fault

Several factors come into play when establishing who is at fault, which are:

  • Police reports: These contain details like the position of the vehicles, damages, statements from both drivers and citations issued for traffic violations.
  • Available evidence: These can include scene photos, dashcam footage and signs of hazardous road conditions.
  • Witness testimonies: These provide witness observations of the accident.
  • Traffic laws: These determine if both parties exhibited negligence on the road.

These carry significant weight and influence the decisions of law enforcement officers, insurance companies and the courts.

Four elements to establish negligence in a car accident

Proving negligence is essential to determine the responsible party. To successfully prove the other party is at fault, these four elements must exist:

  • Duty of care: The driver did not operate their vehicle safely and violated traffic laws.
  • Breach of duty: The driver has committed negligent actions that caused the accident.
  • Causation: The driver’s breach of duty has a direct connection to a victim’s injuries.
  • Damages: The victim suffers from losses due to the accident.

By providing evidence for these elements, it is possible to calculate fault percentages and settlement calculations.

Understanding the modified comparative negligence rule

Courts follow a system called modified comparative negligence to fairly assign fault and compensation. If the other driver is fully responsible, they must cover 100% of the damages. If you are both at fault, you can only recover damages if you are 50% or less responsible for the accident. Your fault percentage reduces the amount of compensation you may receive.

Actions to take after a car accident

Your next steps after a crash are crucial in determining who is at fault. Consider these recommendations:

  • Contact the police and file a report.
  • Obtain the personal and car details of the other driver.
  • Gather evidence that can assist the investigation.
  • Seek medical attention for your injuries, if any.

Navigating a car accident can come with challenges that might deter you from getting compensation, especially if you sustain any injuries. A personal injury attorney can assess your case, negotiate with insurance companies and handle all legal work while you focus on recovering.

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