These anomalies include the way in which British nationals resident in the Crown Dependencies are treated (and might in future be treated) and the island's intention to discuss this further with relevant members of the UK Government.

Deputy St Pier said, "by way of example, Bailiwick residents are currently treated less favourably in some cases than EU nationals (for example as regards healthcare, education, and even some banking services) despite being British nationals and despite the long established constitutional relationship which exists between us."

It is vitally important that our interests continue to be taken into account in the UK-EU negotiations and to ensure that our ancient and historic constitutional relationship with the Crown is upheld and respected.

Deputy St Pier said the island is planning for all eventualities, including a ‘no deal’ scenario and the "formation of a new UK and Crown Dependencies’ custom arrangement."

He wrote that, he would "welcome your continued commitment to building on the strong relationships we have and ensuring that the Bailiwick of Guernsey’s interests are properly represented. It would be extremely helpful to have even greater co-operation and dialogue between our governments for all scenarios, particularly contingency planning."

Deputy St Pier's letter can be read in full here: Brexit_PM_letter

Pictured: Deputy Gavin St Pier.