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 were part of Guernsey. Alderney is similar to the other Channel Islands in having sheer cliffs broken by stretches of sandy beach and dunes. The highest point is on the central plateau of the island at . Its climate is temperate, moderated by the sea, and summers are usually warmer than elsewhere in the British Isles. Alderney and its surrounding islets support a rich flora and fauna. Trees are rather scarce, as many were cut down in the 17th century to fuel the lighthouses on Alderney and the Casquets. Those trees that remain include cabbage trees, due to the mild