In 1949 , all appeals to the Privy Council were abolished , but prior to this , there were several factors that served to limit the effectiveness of measures to reduce appeals : '' Nadan '' , together with the King – Byng Affair , was a major irritant for Canada and provoked the discussion at the 1926 Imperial Conference which led to the Balfour Declaration , which declared the United Kingdom and the Dominions to be With that Declaration and its statutory confirmation in the Statute of Westminster 1931 ( Imp , 22 – 23 Geo 5 , c. 4 ) the impediment to abolishing appeals to the Privy Council , whether or not it had been legitimate , was comprehensively removed . Criminal appeals to the Privy Council were ended in 1933 . Moves to extend the abolition to civil matters were shelved during the growing international crisis of the 1930s but re-tabled after World War II , and civil appeals ended in 1949 , with an amendment of the Supreme Court Act . Cases begun before 1949 were still allowed to appeal after 1949 , and the final case to make it to the Council was not until 1959 with the case of '' Ponoka-Calmar Oils v Wakefield ''
1926 Imperial Conference
1926 Imperial Conference
Judicial Committee of the Privy Council