Section 24(5) in The Delhi Police (Appointment & Recruitment) Rules, 1980
(5)Every candidate shall be duly screened during medical examination and those candidates who are finally found fit, their blood tests shall be carried out and the result of their blood grouping indicated. This shall form a permanent record with their Character Roll so that blood of proper grouping cold be made available to them in case of any medical emergency, without any loss of time.
