The Minquiers and Ecréhous are two groups of islands and rocks forming part of the Bailiwick of Jersey, Channel Islands. They are respectively the most southerly and northerly land territories of the Bailiwick. The islands have no permanent inhabitants.
In 1950, Britain and France went to the International Court of Justice (ICJ) for friendly discussions to decide to which country the Minquiers and Ecréhous belonged. The French fished in the waters, but Jersey exercised various administrative rights. Certain maps showed the Ecréhous islands as not being part of Jersey.The ICJ considered the historical evidence, and in its Judgment of 17 November 1953 awarded the islands to Jersey.
https://web.archive.org/web/20100928092444/http://www.hawaii.edu/aplpj/articles/APLPJ_01.2_heflin.pdf Law School Article by William Heflin that discuss legal case in part