Due to Binnie's background in business and corporate law, he has typically written many of the judgments in those areas of law. However, he also wrote some leading judgments in appeals involving aboriginal rights, constitutional and administrative law and criminal law. In his first term on the Court, Binnie participated in the
Quebec Secession Reference (1998). In his 2019 autobiography, former Supreme Court judge
Michel Bastarache revealed that the drafters of the "
By the Court" judgement in the
Quebec Secession Reference 1998 consisted of Gonthier, Binnie and Bastarache. [Michel Bastarache,
Ce Que Je Voudrais Dire a Mes Enflants, Les Presses de l'Universite d'Ottawa 2019 at p 206]. In
R v Campbell [1999] 1 SCR 565 Binnie wrote for the Court that in prosecutorial decisions the police are independent of political direction or control. In
Whiten v Pilot Insurance [2002] 1 SCR 595, 2002 SCC 18, Binnie wrote for the court developed the principles governing an award of punitive damages in upholding a jury award of a $1 million punitive damages against an insurance company for bad faith rejection of a householder's fire insurance claim.
Canada (House of Commons) v Vaid [2005] 1 SCR 667, 2005 SCC 30 addressed the limits of Parliamentary privilege. During his almost 14 years on the Court Binnie wrote a number of leading decisions on aboriginal rights including
R. v. Marshall [1999] 3 SCR 456 which vindicated the treaty right of the Micmac people to gain a reasonable livelihood by fishing,
Mikisew Cree First Nation v Canada ( Minister of Canadian Heritage) [2005] 2 SCR 388, 2005 SCC 69, upholding constitutional protection for treaty rights and ''Lax Kw'alaams Indian Band v Canada (Attorney General)
[2011] 3 SCR 535, 2011 SCC 56. which rejected a claimed aboriginal right to the commercial fishery in northwest British Columbia. Other judgments concerned freedom of religion [Syndicat Northcrest v Anselem
[2004] 2 SCR 551, 2004 SCC 47, ] intellectual property [Free World Trust v Electro-Sante Inc
[2000] 2 SCR 1024, 2000 SCC 66; Veuve Clicquot Ponsardin v Boutiques Cliquot Ltee
[2006] 1 SCR 824, 2006 SCC 23) arbitration law (Seidel v TELUS Communications Inc
[2011] 1 SCR 531, 2011 SCC 15,) language rights (R v Caron [2011] 1 SCR 78, 2011 SCC 5) the environment ( British Columbia v Canadian Forest Products Ltd
[2004] 2 SCR 74, 2004 SCC 38) and journalistic privilege (R v National Post'' [ 2010] 1 SCR 477; 2010 SCC 16 ). In criminal law, Justice Binnie wrote leading judgments on similar fact evidence (
R v Handy [2002] 2 SCR 908, 2002 SCC 56) unreasonable search and seizure (
R. v. Tessling [2004] 3 SCR 432, 2004 SCC 67;
R v Kang Brown [2008] 1 SCR 456; 2008 SCC 18) and curbing excessive police powers (
R v Clayton [2007 2 SCR 725, 2007 SCC 32). Over the years Justice Binnie dissented on a number of important due process issues, including
R. v. Sinclair, 2010 SCC 35 in favour of an accused on the basis that the majority judgment too narrowly restricted the right of the accused to counsel under Section 10(b) of the
Charter;
R. v. Suberu [2009] 2 SCR 460; 2009 SCC 33 against a majority definition of detention which he thought overstated the average citizen's willingness to ignore a police direction, and
R. v. Stone (1999) 2 SCR 290 where he dissented from the majority verdict of guilty on the basis that where an accused raises a plausible defense of
automatism the onus should be on the prosecution to prove that the acts of the accused were voluntary and that the accused should not bear the affirmative burden of proving
automatism on the balance of probabilities. ==See also==