Dashcams are a cost-effective form of protection for drivers that may be involved in an accident. They record video to a removable memory card and can automatically start recording when your vehicle is on, but stop once you turn the car off. These cameras provide all the evidence needed if someone were to hit you or run into one of your vehicles; they also serve as continuous backup witnesses should any accidents occur while driving, which could potentially protect everyone from frauds like auto insurance scams!