My Ancestor Was A Policeman. Antony Shearman
Contains details of some 250 archives with references to many thousands of names recorded in the police force registers in Britain. Since the act of 1829 the force has grown steadily in number. An appreciable number of these records are held on closed access but are listed so that the time of the researcher need not be wasted in looking for records which cannot be seen. There is a brief history of the police, an example of the great detail of person and conduct that may be found in records, then an annotated list of records for each police force. In some cases it shows that detailed records are closed but summaries are open, or that there is an unofficial index available. If you have police ancestors, this book is essential reading.