Which court case established that RADAR must be proven to be working properly when a speed is recorded?

The correct answer is based on the premise that the use of radar technology in law enforcement requires clear evidence of its reliability and accuracy when determining a vehicle's speed. In the case of Everight v. City of Little Rock, the court highlighted the necessity for law enforcement to demonstrate that the radar device used to measure speed was functioning correctly at the time of its use. This establishes a standard of proof that is essential for the admissibility of radar speed detection results in legal proceedings.

This case underscores the importance of having reliable technology and operational procedures in place, ensuring that any speed recorded by radar is subject to verification, thus safeguarding the due process rights of individuals accused of speeding offenses. This principle is vital for maintaining trust in law enforcement practices and ensuring that the evidence presented in court is credible and accurate.

While other cases may address related issues in traffic enforcement or the use of technology, Everight v. City of Little Rock specifically reinforces the requirement for demonstrating that radar devices are properly calibrated and functioning at the time they are used, making it a landmark ruling in this area of law.