The Grand Ducal Police is the national police force of the Grand Duchy of Luxembourg. The police is under the control of the Minister for the Interior of Luxembourg, although they operate in the name, and under the ultimate control, of the Grand Duke of Luxembourg. Day-to-day executive control is exercised by the Director-General of the Grand Ducal Police. The Grand Ducal Police has existed in its current form since 1 January 2000, when the Grand Ducal Gendarmerie was merged with the police service.

Diekirch is a commune with town status in north-eastern Luxembourg, in the canton of Diekirch and, until its abolition in 2015, the district of Diekirch. The town is situated on the banks of the Sauer river.