A group of drivers in Germany appeared in images taken by a speed‑monitoring camera despite obeying the legal limit. The camera system failed to detect a change in the posted speed from 30 km/h to 50 km/h. Because of a software error, the device continued to record vehicles that were travelling within the new limit. The affected drivers were therefore mistakenly shown as if they had broken the law. The malfunction caused the camera to log compliant traffic as violations. Authorities identified the technical glitch as the cause of the erroneous photographs. No illegal driving was recorded; the drivers were fully compliant.