Shanghai Municipal Police - Guide and Regulations, 1938 (1938)
Compiled by Inspector W.H. Widdowson
Contains orders and procedures for the police force.
The introduction states clearly that this book "is issued for the information of members of the Police Force only, and should not be shown to or left where unauthorised persons may have access to it."
Covers such matters as Sale of Bullet Proof Vests, Public Morality, Legal Jurisdiction, Communists, Gaols, etc etc. A fascinating overview of life in Shanghai in the 1930's.