These registers give class of officer, number of certificate granted if not dismissed (1. Excellent, 2. Very Good, 3. Good, 4. Open, i.e. no comment), date certificate sent to division, number of documents an officer is entitled to according to regulations, and date documents sent to division. These last two details are phased out around 1913-1914 and the comments on an officer's conduct are no longer expressed numerically. The abbreviation RP stands for 'resignation permitted' and is replaced in October 1920 by RR 'required to resign'. The divisional abbreviation CO stands for 'Commissioner's Office'.
The volumes contain alphabetical indexes of the individual policemen's names.