Jersey Legal French, also known as Jersey French , is the official dialect of French used administratively in Jersey. Since the anglicisation of the island, it survives as a written language for some laws, contracts, and other documents. Jersey's parliament, the States of Jersey, is part of the Assemblée parlementaire de la Francophonie. The English language has been allowed in parliamentary debates since February 2, 1900; the current use of French in the parliament is generally restricted to formalities (prayers, ceremonies, formulæ).