Wehrmachtstreifendienst (Army's Patrol Service) consisted of two elements which were part of the Feldgendarmerie assigned to security duty in railway stations throughout Germany and German-occupied territories during World War II.
Their purpose was to maintain order and discipline in stations, ensuring swift movement of troops and hardware, advise and direct soldiers moving through these stations, and to check travel papers, looking for deserters as well as escaped prisoners of war.
They had the more dangerous duties of guarding trains traveling through enemy territory and dealing with acts of sabotage by Partisans or Resistance.
[1] The Bahnhofswache wore no distinguishing corps badge or colour other than their normal military police however an armband or more commonly a gorget were worn with 'Bahnhofswache' imprinted on them and two numbers, one indicating the military district and the other indicating the unit number.
Zugwache troops wore a similar gorget but with the monogram WB (Wach Bataillon) and 'Zugwache' imprinted on it.