R. v. Hebert [1990] 2 SCR 1 (excerpts)
R. v. Mack, [1988] 2 S.C.R. 903
R. v. Barnes, [1991] 1 S.C.R. 449
R. v. Hart, 2014 SCC 52, [2014] 2 S.C.R. 544 (headnote only).