PRAGUE (Reuters) - A Czech police officer took a police campaign to cut traffic accidents a little too far when he shot at a pedestrian who crossed a road on a red light. The policeman in the western city of Pilsen first fired a warning shot in the air. But when the man refused to return to the pavement, the officer shot at him twice but missed, the online edition of the Czech daily Pravo said. No one was injured. The police officer faces a criminal investigation.