Imperial Police Long Service and Good Conduct Medal: Instituted in 1951, the medal was awarded for 22 years full-time service in any of the British Constabularies. On 01 MAY 1956, the medal's entitlement was extended to police forces in Australia, Papua-New Guinea and Nauru. The award in Australia was replaced in 1975 by the National Medal (aka 'Gough's Gong'). Since then, in addition to the National Medal, individual police jurisdictions have struck long service medals to recognise 10 years service with state and territory police forces and services. This medal was struck in cupro-nickel with a riband of white, featuring a broad central mid-blue stripe flanked by a thin stripe on each side. The obverse side features an effigy of the reigning monarch, and the reverse features a female figure holding scales of justice and a wreath, circled by the words "for exemplary police service."