Wikipedia
Wasserschutzpolizei
The Wasserschutzpolizei (WSP - literally translated "Water Police Force" in German) is the water police that patrols the waterways, lakes and harbours of Germany around the clock. The WSP are part of the Landespolizei (State Police). The Federal Police (Bundespolizei or BPOL) maintains 16 patrol craft and helicopters are part of the Coast Guard (Küstenwache) and assigned to coastal BPOL stations. The watercraft include six offshore patrol vessels, e.g. those of the Bad Bramstedt class, as well as a number of fast inshore vessels and one tugboat.