On 1 February 1951 East German Volkspolizei took over control of West Staaken, including the airfield and adjacent Neu-Jerusalem located there, and ended the administration by the Spandau Borough; instead West Staaken became an exclave of East Berlin's then Borough of Mitte. This caused the confusing fact, that the geographically western Staaken was part of the politically Eastern East Berlin at the geographically western outskirts of West Berlin, while the geographically eastern Staaken remained with the political Western British sector, thus West Berlin. East Germany then moved up its border checkpoint towards West Berlin from Dallgow more eastwards to West Staaken.