III. Deciding Criminal Culpability
Under sec. 16 of the Criminal Code, a person will not be held criminally liable for any offence if they meet the defence of "mental disorder".
16. (1) No person is criminally responsible for an act committed or an omission made while suffering from a mental disorder that rendered the person incapable of appreciating the nature and quality of the act or omission or of knowing that it was wrong.
Presumption
(2) Every person is presumed not to suffer from a mental disorder so as to be exempt from criminal responsibility by virtue of subsection (1), until the contrary is proved on the balance of probabilities.
Burden of proof
(3) The burden of proof that an accused was suffering from a mental disorder so as to be exempt from criminal responsibility is on the party that raises the issue.
As when it comes to determining fitness to stand trial, defence lawyers, Crown lawyers and judges all have the power to seek a forensic psychiatric assessment if they think a mental disorder could have affected a person's actions when a crime was committed. The court will consider those assessments before determining whether the person is criminally responsible for their actions.
Many people seem to think that this defence is only available to those who have a mental illness, but in reality it covers any type of recognized mental disorder, including, for example, autism and intellectual challenges. Also contrary to popular opinion, it is not an easy defence to meet. One must prove not only that they had a mental disorder at the time the offence was committed, but they must also satisfy the court that the disorder made it impossible for them to either
Before changes made to the Criminal Code in 1992, courts had no discretion but to automatically detain in custody persons found "not guilty by reason of insanity" (as it was once known) or unfit to stand trial on what was known as a 'lieutenant governor's warrant".
Changes made in 1992 to the Criminal Code (following the introduction of the Canadian Charter of Rights and Freedoms) eliminated the reference to "not guilty by reason of insanity" and replaced it with "not criminally responsible" (NCR). Also eliminated were the provisions concerning automatic "strict custody" and the role of the lieutenant governor.
Now, the court, itself, can either hold what is known as a "disposition hearing" or send the matter to the Criminal Code Review Board to hold a disposition hearing, following which the accused will be given an absolute discharge (meaning they are free to go), a conditional discharge (meaning they will live either in the community or a hospital subject to the conditions or restrictions set by the court of the Review Board) or be detained in custody in a hospital subject to conditions or restrictions.
The basic principle behind Section 16 of the Criminal Code of Canada dates back to a British ruling from 1800 in the case of James Hadfield. Hadfield had fired a gun at King George III and was found not guilty of attempted murder by reason of insanity. The chief justice, Lord Kenyon, felt that prison wasn't the place for Hadfield but also considered that it would be wrong to return him to the community
Kenyon wrote:"The prisoner, for his own sake, and for the sake of society at large, must not be discharged; for this is a case which concerns every man of every station, from the king upon the throne to the beggar at the gate; people of both sexes and of all ages may, in an unfortunate frantic hour, fall a sacrifice to this man, who is not under the guidance of sound reason; and therefore it is absolutely necessary for the safety of society that he should be properly disposed of, all mercy and humanity being shown to this most unfortunate creature.
"But for the sake of the community, undoubtedly, he must somehow or other be taken care of, with all the attention and all the relief that can be afforded him ... for the present, we can only remand him to the confinement he came from."
Hadfield was held in a psychiatric hospital for the rest of his life.
IV. Sentencing An Individual with Special Needs
In the US, given that the death penalty has been taken off the table for defendants with an intellectual disability, the question now before that country's Supreme Court is how states should decide if someone convicted of a crime actually has an intellectual disability.We are told that mental health professionals define an intellectual disability as a "substantial limitations in intellectual functions such as reasoning or problem-solving, limitations in adaptive behavior or “street smarts,” and evidence of the condition before age 18". Some states use this definition; however, others are much more arbitrary - such as Florida, where if you have an IQ over 70, you’re eligible for execution regardless of intellectual function or adaptive behavior.
Here in Canada, the death penalty, thankfully, is not on the table. However, when it comes to sentencing persons with disabilities for their crimes, one glaring discrepancy does come to mind. Although Canadian sentencing laws recognize that some categories of people in society are different than others (namely Aboriginals and youth), there is no special recognition given to persons with disabilities.
A. Aboriginal SentencingWhich might lead one to conclude that in the eyes of Canadian criminal law, no matter the type or severity of a defendant's disability, his or her circumstances are no different than anyone else's.
Section 718.2(e) of the Criminal Code addresses Aboriginal sentencing. The section requires a sentencing judge to pay particular attention to the circumstances of Aboriginal offenders and to consider all available sanctions other than imprisonment that are reasonable in the circumstances. An individual’s Aboriginal status is considered in determining a sentence because his or her circumstances are different from non-Aboriginal offenders.
One reason why the Criminal Code treats Aboriginal people uniquely is because Aboriginal people are overrepresented in Canadian prisons. For example, in 1997, Aboriginal people constituted close to 3 percent of the population of Canada, yet amounted to 12 percent of all federal inmates.
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B. Youth Sentencing
The Youth Criminal Justice Act provides the legislative framework for Canada’s youth justice system. It includes a separate sentencing regime because the needs and situations of youth are different from those of adults.

