The first consisted of 2,737 ex-police pensioners who were re-engaged , a second of 5,380 Special Constables serving on a full - time basis for the duration of the war .
The third being 18,868 War Reserve Constables employed on the same basis as the Special Constables .
The first consisted of 2,737 ex-police pensioners who were re-engaged , a second of 5,380 Special Constables serving on a full - time basis for the duration of the war , and the third being 18,868 War Reserve Constables employed on the same basis as the Special Constables .