What authority governs the use of speed detection devices in law enforcement?

The use of speed detection devices in law enforcement is primarily governed by state laws and local regulations. This is due to the fact that speed enforcement measures, including the operation and calibration of speed detection equipment, are typically dictated by each state’s laws, which can vary widely. In addition to state laws, local jurisdictions may establish their own regulations and guidelines specific to how speed detection devices can be employed, including requirements for training, proper use, and maintenance of equipment.

While federal laws may impact broader enforcement practices, they do not specifically dictate the operational details of speed detection devices. Similarly, international guidelines and judicial rulings may offer principles or precedents, but they typically do not establish the specific operational rules that govern the day-to-day use of these devices in individual states or communities. Therefore, it is the state laws and local regulations that provide the necessary framework for law enforcement to utilize speed detection technology effectively and legally.