On February 23, 1938, a Jerusalem Military Court convicted Mustafa Mansour of the unlawful possession of a weapon and for opening fire at a bus. The prosecution's key witness tying Mansour to the shooting was, however, not human but canine. Due to darkness the police could not pursue the “brigands” immediately following the incident. They returned at dawn accompanied by Doberman Pinschers. The dogs tracked footprints from the crime scene to the defendant's village, and then to his house, where the police discovered a few rounds of ammunition, some of which were spent.