Columbia subject headings:
Criminal investigation--Poland--History.
Criminal justice, Administration of--Poland--History.
Law enforcement--Poland--History.
Police--Poland--History.
Harvard subject headings:
Criminal investigation--Poland--History.
Criminal justice personnel--Poland--History.
Criminal justice, Administration of--Poland--History.
Law enforcement--Poland--History.
Police--Poland--History.
Princeton subject headings:
Criminal justice personnel--Poland--History.
Law enforcement--Poland--History.
Police--Poland--History.