Bailiwick of Guernsey Bailiwick of Guernsey The Bailiwick of Guernsey () is one of three Crown dependencies. Separated from the Dukedom and Duchy of Normandy by and under the terms of the Treaty (or Peace) of Le Goulet in 1204, the Bailiwick comprises a number of islands in the English Channel which fall into three separate sub-jurisdictions: Guernsey, Alderney and Sark. A bailiwick is a territory administered by a Bailiff. The Bailiff of Guernsey is the civil head, and presiding officer of the States of Guernsey, but not of Alderney or Sark. He is the head of the judiciary of the Bailiwick. The
Alderney Alderney Alderney (; ; Auregnais: "Aoeur'gny") is the northernmost of the inhabited Channel Islands. It is part of the Bailiwick of Guernsey, a British Crown dependency. It is long and wide. The area is , making it the third-largest island of the Channel Islands, and the second largest in the Bailiwick. It is around from the west of La Hague on the Cotentin Peninsula, Normandy, in France, from the north-east of Guernsey and from the south coast of Great Britain. It is the closest of the Channel Islands to the United Kingdom. It is separated from Cap de la Hague