Unlike the largely autonomous islands of Sark and Alderney within the Bailiwick , Jethou is administered entirely by the States of Guernsey , and elects members to the States of Deliberation as part of the St. Peter Port South electoral district .
Unlike the largely autonomous islands of Sark and Alderney within the Bailiwick , Jethou can not pass its own laws . It is administered by the States of Guernsey , and elects members to the States of Deliberation as part of the St. Peter Port South electoral district .