Naval stations were the highest land based commands of Imperial German naval authority. The Chief of the Naval Station was usually an admiral who commanded the military police in the port area and the fortifications of the port. He oversaw the operation of sailors and shipyard divisions, and the ship reserve divisions. In addition he had command of all warships in his zone that did not have permanent commanders, such as test commands. Administrative sections of the two naval stations were Garrison Station services and funds, building authorities, offices clothing, food, offices and laundries.