Do the channel islands between France and great Britain belong to british or french?

The Channel Islands are a group of islands located in the English Channel, off the coast of Normandy, France. They are not part of the United Kingdom, but are instead Crown dependencies of the British Crown. This means that they are self-governing, with their own parliaments and laws, but the British monarch is their head of state. The Channel Islands include Jersey, Guernsey, Alderney, Sark, and Herm.