 The Berlin WSP is responsible for patrolling the extensive waterway network of the city and state of Berlin, and forms part of Central Directorate of the Berlin Police.Besides the normal responsibilities of the water police, the Berlin WSP also has an important security role because of the many government and other capital city related buildings to be found alongside the River Spree and other inner-urban waterways.The Berlin WSP comprises three geographically based "Wachen".