Columbia subject headings:
Crime--England--London--19th century.
Crime--New York (State)--New York--19th century.
Police--England--London--19th century.
Police--New York (State)--New York--19th century.
Harvard subject headings:
Crime--England--London
Crime--New York (State)--New York
Police--England--London.
Police--New York (State)--New York
Princeton subject headings: