The "Constitution Act, 1982", greatly expanded the role of the Court in Canadian society by the addition of the "Canadian Charter of Rights and Freedoms", which greatly broadened the scope of judicial review. The evolution from the Dickson court (1984–90) through to the Lamer court (1990–2000) witnessed a continuing vigour in the protection of civil liberties. Lamer's criminal law background proved an influence on the number of criminal cases heard by the Court during his time as chief justice. Nonetheless, the Lamer court was more conservative with "Charter" rights, with only about a 1% success rate for "Charter" claimants.