R v Morgentaler

Perhaps the most prominent majority opinion was that of Dickson CJ, with Lamer J (as he then was) concurring. Dickson began by examining section 7. He found that section 251 forced some women to carry a fetus irrespective of her own "priorities and aspirations". This was a clear infringement of security of person. He found a further violation due to the delay created by the mandatory certification procedure which put the women at higher risk of physical harm and caused harm to their psychological integrity.

Following a standard section 7 analysis, Dickson examined whether the violation accorded with the principles of fundamental justice. He found that it did not because the excessive requirements prevented smaller hospitals from providing such services thus preventing many women from even applying for certification. Moreover, he found that the administrative system failed to provide adequate evaluation criteria which allowed the committees to grant or deny therapeutic abortions arbitrarily.

Dickson found that the violation could not be justified under section 1, focusing on the means chosen by the government to achieve its objectives. In the end, the law failed on every step of the proportionality test. First, he found the administrative process was often unfair and arbitrary. Second, the resultant impairment of the women's rights was beyond what was necessary to evaluate their case. Third, the effect of the impairment far outweighed the importance of the law's objective.

Beetz J, joined by Estey J, wrote a second opinion finding the abortion law invalid. In it, Beetz noted that by adopting section 251(4), the government acknowledged that the interest of the state to protect the woman is greater than its interest to protect the fetus when "the continuation of the pregnancy of such female person would or would be likely to endanger her life or health". The Justice's reasoning closely resembled that of the Chief Justice. He found a violation of section 7 as the procedural requirements of section 251 were "manifestly unfair".

Beetz's reasoning in the section 1 analysis was also similar to that of Dickson. He found that the objective had no rational connection to the means, meaning the law could not be justified. He also speculated that if the government were to enact a new abortion law, this law would require a higher degree of danger to the woman in the later months rather than the early months for an abortion to be allowed. In this case, it could be sufficiently justifiable under section 1.

In examining whether the law was ultra vires, Beetz examined sections 91 and 96 of the Constitution Act, 1867. He decided that the law was within the power of the federal government on account that the committee was not given any power over any provincial jurisdiction under section 91 nor did it function in any sort of judicial manner under section 96.

Wilson J wrote her own concurring opinion taking a significantly different approach. She held that section 251 violates two rights: liberty and security of person. She emphasized how section 251 violated a woman's personal autonomy by preventing her from making decisions affecting her and her fetus' life. To Wilson, a woman's decision to abort her fetus is one that is so profound on so many levels it goes beyond being a medical decision and becomes a social and ethical one as well. By removing the women's ability to make the decision and giving it to a committee would be a clear violation of their liberty and security of person. Wilson scathingly noted the state is effectively taking control of a woman's capacity to reproduce.

Wilson went on to agree with the other judges that section 251 (prohibiting the performance of an abortion except under certain circumstances) is procedurally unfair, adding that the violation of section 7 also has the effect of violating section 2(a) of the Charter (freedom of conscience) in that the requirements for a woman to be permitted to obtain an abortion legally (or for a doctor to legally perform one) were in many cases so onerous or effectively impossible that they were "resulting in a failure to comply with the principles of fundamental justice". The decision to abort is primarily a moral one, she noted, and therefore by preventing her from doing so, the decision violates a woman's right to conscientiously-held beliefs. With the abortion law, the government was supporting one conscientiously-held belief at the expense of another, and in effect, was treating women as a means to an end and depriving them of their "essential humanity".

Wilson also stated that

The decision whether to terminate a pregnancy is essentially a moral decision, a matter of conscience. I do not think there is or can be any dispute about that. The question is: whose conscience? Is the conscience of the woman to be paramount or the conscience of the state? I believe, for the reasons I gave in discussing the right to liberty, that in a free and democratic society it must be the conscience of the individual.

In her analysis of section 1, Wilson noted the value placed on the fetus is proportional to its stage of gestation and the legislation must take that into account. However, here, the law cannot be justified because it takes the decision-making power away from the woman absolutely and therefore cannot pass the proportionality test.