there's no separate guernsey nationality there is no guernsey nationality law the law which applies is the united kingdom's british nationality act formallly as extended to the island s by order in council people from any of the crown dependencies within the british islands are full british citizens guersney people may have their passports issued in london and people from london if they happen to be in the island at the time of application can have their passports issued in st peter port the only distinction which exists which is of little practical consequence is that a minority of people from the crown dependencies have restricted eu free movement rights under the provisions of protocol to the treaty of rome