Police officer checking the tires of a school bus, Plaidt, Rhineland-Palatinate, Germany, Europe

Policeman holding a signalling disc, lettering Halt, Polizei, German for Stop, Police, speed control, on 24/10/2012, Oberbergischer Kreis district, Lindlar, North Rhine-Westphalia, Germany, Europe

Traffic accident, 5 people hurt, on A1 motorway at the Leverkusen motorway junction, North Rhine-Westphalia, Germany, Europe

Boat of the water police patrolling on the Rhine river at Duisburg, North Rhine-Westphalia, Germany, Europe

Police outside Duesseldorf central station after a brief closure of the station due to a terror warning, Duesseldorf, North Rhine-Westphalia, Germany, Urope, Europe

Policeman holding a signalling disc, extensive speed controls in North Rhine-Westphalia on 24. 10. 2012, Recklinghausen, North Rhine-Westphalia, Germany, Europe

Policemen operating a laser speed gun, extensive speed controls in North Rhine-Westphalia on 24. 10. 2012, Recklinghausen, North Rhine-Westphalia, Germany, Europe

"Open inner-German border between Lower Saxony and the district of Erfurt, Thuringia, in the morning after the opening of the border was announced, GDR citizens leaving on the road from Worbis to Duderstadt, Duderstadt, Lower Saxony, Germany, Europe"

"Open inner-German border between Lower Saxony and the district of Erfurt, Thuringia, in the morning after the opening of the border was announced, GDR citizens leaving on the road from Worbis to Duderstadt, Duderstadt, Lower Saxony, Germany, Europe"

Police officers during a traffic check, 1960s, Berlin, Germany, Europe