an Entity references as follows:
The Colonial Prison Service Medal was established on 28 October 1955 as a long service medal of the United Kingdom and the Commonwealth. On 10 April 2012 the medal became known as the Overseas Territories Prison Service Medal, and underwent a minor change in design. This reflected the change in the way Britain's remaining colonies were described, they having been classed as 'Overseas Territories' from 2002.