Mens rea is the mental element of a person's intention to commit a crime; or knowledge that one's action or lack of action would cause a crime to be committed. It is considered a necessary element of many crimes.
The rule of felony murder is a legal doctrine in some common law jurisdictions that broadens the crime of murder: when an offender kills in the commission of a dangerous or enumerated crime, the offender, and also the offender's accomplices or co-conspirators, may be found guilty of murder.
In criminal law, criminal negligence is a surrogate mens rea required to constitute a conventional as opposed to strict liability offense. It is not, strictly speaking, a mens rea because it refers to an objective standard of behaviour expected of the defendant and does not refer to their mental state.
Attempted murder is a crime of attempt in various jurisdictions.
Section 7 of the Canadian Charter of Rights and Freedoms is a constitutional provision that protects an individual's autonomy and personal legal rights from actions of the government in Canada. There are three types of protection within the section: the right to life, liberty and security of the person. Denials of these rights are constitutional only if the denials do not breach what is referred to as fundamental justice.
R v Creighton, [1993] 3 S.C.R. 3 is a landmark case from the Supreme Court of Canada where the Court found that the standard for criminal liability for some offences can be lowered and not offend the Charter. This case marked the last in a series of cases, beginning with R. v. Tutton, discussing the use of an objective standard for determining mens rea in criminal offences.
R v Martineau, [1990] 2 SCR 633 is a leading Supreme Court of Canada case on the mens rea requirement for murder.
R v DeSousa [1992] 2 S.C.R. 944, is the Supreme Court of Canada case where the Court determined the Constitutionally required level for mens rea for the charge of "unlawfully causing bodily harm". The case is one of a series of cases including R. v. Hundal and R. v. Creighton where the Court reduced the requirement for culpability for a number of crimes.
Reference Re BC Motor Vehicle Act, [1985] 2 SCR 486, was a landmark reference submitted to the Supreme Court of Canada regarding the constitutionality of the British Columbia Motor Vehicle Act. The decision established one of the first principles of fundamental justice in the Canadian Charter of Rights and Freedoms ("Charter"), beyond mere natural justice, by requiring a fault component for all offences with penal consequences. The decision also proved important and controversial for establishing fundamental justice as more than a procedural right similar to due process, but also protects substantive rights even though such rights were counter to the intent of the initial drafters of the Charter.
R v Daviault [1994] 3 S.C.R. 63, is a Supreme Court of Canada decision on the availability of the defence of intoxication for "general intent" criminal offences. The Leary rule which eliminated the defence was found unconstitutional in violation of both section 7 and 11(d) of the Canadian Charter of Rights and Freedoms. Instead, intoxication can only be used as a defence where it is so extreme that it is akin to automatism or insanity.
The criminal law of Canada is under the exclusive legislative jurisdiction of the Parliament of Canada. The power to enact criminal law is derived from section 91(27) of the Constitution Act, 1867. Most criminal laws have been codified in the Criminal Code, as well as the Controlled Drugs and Substances Act, Youth Criminal Justice Act and several other peripheral statutes.
In criminal law, intent is a subjective state of mind that must accompany the acts of certain crimes to constitute a violation. A more formal, generally synonymous legal term is scienter: intent or knowledge of wrongdoing.
Section 12 of the Canadian Charter of Rights and Freedoms, as part of the Constitution of Canada, is a legal rights section that protects an individual's freedom from cruel and unusual punishments in Canada. The section has generated some case law, including the essential case R. v. Smith (1987), in which it was partially defined, and R. v. Latimer (2001), a famous case in which Saskatchewan farmer Robert Latimer protested that his long, mandatory minimum sentence for the murder of his disabled daughter was cruel and unusual.
In criminal law, strict liability is liability for which mens rea does not have to be proven in relation to one or more elements comprising the actus reus although intention, recklessness or knowledge may be required in relation to other elements of the offense. The liability is said to be strict because defendants could be convicted even though they were genuinely ignorant of one or more factors that made their acts or omissions criminal. The defendants may therefore not be culpable in any real way, i.e. there is not even criminal negligence, the least blameworthy level of mens rea.
R v Tutton, [1989] 1 S.C.R. 1392 was a decision of the Supreme Court of Canada on the mens rea requirements for criminal offences related to manslaughter. The Court was split three to three over whether two parents, believing that their diabetic child was cured by God, are guilty of manslaughter for intentionally failing to give the child his insulin.
R v Swain, [1991] 1 S.C.R. 933 is a leading constitutional decision of the Supreme Court of Canada on certain rights of the mentally ill in their criminal defence. The case concerned a constitutional challenge of the common law rule permitting the Crown to adduce evidence of an accused's insanity and section 542(2) of the Criminal Code, which allowed for the indeterminate detention of an accused who is found not guilty by reason of "insanity". The Court held that both the common law rule and the Code provision were unconstitutional. As a result, the Court created a new common law rule that was constitutional, and Parliament created new laws of what to do with individuals who were found not criminally responsible by reason of a mental disorder. The parties to the case were the appellant, Swain, the respondent, the Crown, and the following interveners: the Attorney General of Canada, the Lieutenant Governor's Board of Review of Ontario, the Canadian Disability Rights Council, the Canadian Mental Health Association, and the Canadian Association for Community Living.
Criminal law is the body of law that relates to crime. It prescribes conduct perceived as threatening, harmful, or otherwise endangering to the property, health, safety, and moral welfare of people inclusive of one's self. Most criminal law is established by statute, which is to say that the laws are enacted by a legislature. Criminal law includes the punishment and rehabilitation of people who violate such laws.
South African criminal law is the body of national law relating to crime in South Africa. In the definition of Van der Walt et al., a crime is "conduct which common or statute law prohibits and expressly or impliedly subjects to punishment remissible by the state alone and which the offender cannot avoid by his own act once he has been convicted." Crime involves the infliction of harm against society. The function or object of criminal law is to provide a social mechanism with which to coerce members of society to abstain from conduct that is harmful to the interests of society.
R v Zora, 2020 SCC 14 is a case in which the Supreme Court of Canada held unanimously that the offence of breaching bail conditions under the Criminal Code requires subjective mens rea.
R v Brown, 2022 SCC 18 is a decision of the Supreme Court of Canada on the constitutionality of section 33.1 of the Criminal Code, which prohibited an accused from raising self-induced intoxication as a defence to criminal charges. The Court unanimously held that the section violates the Charter of Rights and Freedoms and struck it down as unconstitutional. The Court delivered the Brown decision alongside the decision for its companion case R v Sullivan.
