 Mr Ross remained Chief Constable of the force, until it merged with the other Police forces of the Scottish Highlands & islands on 16 May 1975 to form the Northern Constabulary.On amalgamation, Mr Ross became an Assistant Chief Constable of the new Force with particular responsibility for Mountain Rescue matters.The Force wore the Scottish Constabulary crest (Semper Vigilo) cap badge throughout its existence, and the force was identified by the chromed metal insignia R&S on rails worn on the epaulettes of Constables and Sergeants above the officer's collar number.