Prepared by the District of Columbia Street Law Project for its annual city-wide mock trial competition, this instructional handout provides material for a civil case over an automobile accident. Walker Thomas is suing Sam Nomad for damages that resulted from a collision, for which both parties blame the other. The handout clarifies the laws and explains the legal precedents. As evidence, the handout provides the estimated costs for the repair of the vehicles; a map of the intersection where they collided; and witness statements from the plaintiff, the police officer who first arrived at the scene, the plaintiff's wife (who was in the car), the defendant, and two witnesses. Through participation in mock trials and analysis of the activity, students gain an insider's perspective on courtroom procedure and a basic understanding of the legal mechanism through which society resolves its disputes. Mock trials develop critical analysis, questioning and listening skills, and skills in preparing and organizing materials. (JD)