What might cause an officer's credibility to be questioned in court regarding radar readings?

In a court context, the credibility of an officer's testimony regarding radar readings can significantly hinge on the reliability and accuracy of the radar equipment they used. If the radar unit has not been properly calibrated, this could lead to inaccurate speed readings, undermining the evidence presented. Furthermore, the absence of training documentation can raise doubts about whether the officer was adequately trained to operate the radar equipment. Courts expect that law enforcement officers follow established protocols for calibration and that they possess the necessary training to ensure the reliability of the data produced. Therefore, if an officer cannot prove that their radar was properly calibrated and that they had received appropriate training, it could legitimize challenges to their credibility in court, impacting the overall prosecution of speeding violations.