Sopinka was involved with several high-profile cases, including acting on behalf of Susan Nelles when she sued the government of Ontario and the Toronto police for malicious prosecution after the withdrawal of charges against her for murdering babies at the Hospital for Sick Children in Toronto.[6] An inquiry into her case exonerated her and she won damages from the government for her ordeal. In 1986 he represented the Civil Liberties Commission of the Ukrainian Canadian community, the CLC at the Deschênes Commission of Inquiry on War Criminals and argued against the deportation of suspected war criminals to their native lands, particularly the Soviet Union.[7] He also served as counsel to the William Parker Inquiry that looked into the conduct of former cabinet minister Sinclair Stevens.[8]
Appointment to the Supreme Court of Canada
A noted trial lawyer, he was appointed directly to the Supreme Court of Canada on May 24, 1988[9] without ever having been a judge. At the time it was highly unusual for a Supreme Court of Canada appointee to have had no prior judicial experience. Following Sopinka's death, the court's next appointee, Ian Binnie, also came directly from private practice.
Death
Sopinka died in Ottawa on November 24, 1997, of a blood disease.[10]
Posthumous recognition
In 1999, a new courthouse in downtown Hamilton was named in his honour. The John Sopinka Courthouse has 18 courtrooms, accommodating Hamilton's civil, criminal, and small claims courts. The government of Canada had purchased and renovated the Dominion Public Building for an estimated $64-million. The building was erected in 1935-36 and served as the main post office until 1991.[11]
Also in 1999, the Sopinka Cup was established. This is a national mock trial competition open to law students from law faculties all over Canada.[12] In 2000, the volume Ruled by Law: Essays in Memory of Mr. Justice John Sopinka was published as a special edition of the Supreme Court Law Review (volume 12, second series). Many of the contributors were former law clerks of John Sopinka who had gone on to become law professors. The collection was reprinted by Butterworths Canada as a free-standing volume in 2003.