The law of Jersey has been influenced by several different legal traditions, in particular Norman customary law, English common law and modern French civil law. The Bailiwick of Jersey is a separate jurisdiction from that of the United Kingdom, and is also distinct from that of the other Channel Islands such as Guernsey, although they do share some historical developments. Jersey's legal system is 'mixed' or 'pluralistic', and sources of law are in French and English languages, although since the 1950s the main working language of the legal system is English.