A police checkpoint is a designated location where law enforcement officers stop vehicles to check for compliance with laws and regulations. These checkpoints are often set up to ensure public safety, enforce traffic laws, and deter criminal activity. Officers may check for valid driver's licenses, vehicle registration, and signs of impaired driving. Checkpoints can be temporary or permanent and are commonly used during events like holidays or festivals when traffic increases. They may also focus on specific issues, such as DUI enforcement or border security. The goal is to promote safety and reduce crime in the community.