Columbia subject headings:
Harvard subject headings:
Law enforcement--Germany--History--1945-1955--Congresses.
Police power--Germany--History--1945-1955--Congresses.
Police regulations--Germany--History--1945-1955--Congresses.
Princeton subject headings:
Law enforcement--Germany--History--Congresses.
Police power--Germany--History--Congresses.
Police regulations--Germany--History--Congresses.