The Singapore Police Service Good Service Medal may be awarded to an eligible person from the Singapore Police Force, Singapore Prisons Service and Central Narcotics Bureau in recognition of his good, efficient and faithful service. Eligible individuals must have provided regular or voluntary service, either part-time or a combination of part-time and full-time, for a continuous period of at least five years. For Police National Servicemen (PNSMen), two years of national service and three years of reserve service may be counted towards the minimum requirement.