R v Lavallee

R v Lavallee
Hearing: October 31, 1989
Judgment: May 3, 1990
Full case nameAngelique Lyn Lavallee v Her Majesty The Queen
Citations[1990] 1 S.C.R. 852
Docket No.21022
Prior historyOn appeal from Court of Appeal for Manitoba
RulingLavallee appeal allowed
Court membership
Chief Justice: Brian Dickson
Puisne Justices: Antonio Lamer, Bertha Wilson, Gérard La Forest, Claire L'Heureux-Dubé, John Sopinka, Charles Gonthier, Peter Cory, Beverley McLachlin
Reasons given
MajorityWilson, joined by Dickson, Lamer, L'Heureux-Dubé, Gonthier and McLachlin
ConcurrenceSopinka
La Forest and Cory took no part in the consideration or decision of the case.

R v Lavallee, [1990] 1 S.C.R. 852 is a leading Supreme Court of Canada case on the legal recognition of battered woman syndrome. The judgment, written by Justice Bertha Wilson, is generally considered one of her most famous. The court held in favour of allowing battered woman syndrome to explain how the mental conditions for self-defence were present in this case, and Lavallee's acquittal was restored.