Station inspector

Station inspectors wear a rank insignia of two point-up chevrons, the Singapore coat of arms and a garland below.

Station inspectors wear the letters 'NPCC' below their rank insignia to differentiate them from Singapore Police Force personnel.

The sub-divisional inspector later received two stars in 1922 to reduce confusion between the two levels of command.

The rank of junior station inspector was abolished in 1938 and the Metropolitan Police College was closed in 1939.

The insignia for junior station inspector was used until 1941, when the last graduates who held the rank had completed their probationary period.