Dash cams can be used as evidence in court in case of an accident or any other incident on the road. The footage recorded by a dash cam can provide crucial evidence to support a case or to determine fault in an accident. It can help in proving the actual events of the accident and who was responsible for it. The footage can also be used to identify witnesses, license plates, and other important details that can help in the investigation of an incident. However, the admissibility of dash cam footage in court may depend on the specific laws and regulations in your country or state.