Section 799(a) in Police Regulations, Bengal , 1943
(a)The Superintendent shall arrange for the training of selected constables as nursing orderlies, according to the allotted scale. Men selected for this training shall preferably be those who hold first aid certificates. The training shall be given by the Sub-Assistant Surgeon attached to the police hospital under the direction of the Civil Surgeon according to the syllabus in Appendix XLIX, the course lasting not more than six months. Constables should be so trained during the six months immediately preceding their appointment as nursing orderlies. If any constable is so appointed one year or more after taking the course, he shall, on appointment, be put through a refresher course.