(6.5) United Kingdom: The term 'Special Constable' used to refer to any constable not sworn in to a territorial police force as a regular constable. There have been examples in history of paid Special Constables who were not volunteer police officers. The United Kingdom Atomic Energy Authority Constabulary were sworn in as special constables under the Special Constables Act 1923. However, the passage of the Energy Act 2004 created a new police force - the Civil Nuclear Constabulary - with specifically defined powers and the officers lost their status as Special Constables. The Yeomen Warders of the Tower of London were first sworn in as Special Constables in the 1960s, but this stopped in 1991. There are still a few paid Special Constables - Port Police are sworn in under Section 79 of the Harbours, Docks, and Piers Clauses Act 1847 and the Epping Forest Keepers are also sworn in as Special Constables for both the Metropolitan and Essex police districts under the Epping Forest Act 1878