The cross-fertilization of jurisprudence and the principle of proportionality : process and result from a canadian perspective

Modern comparative constitutionalism traces back at least to the practice of some states in the post-World War II era of adopting democratic regimes as well as constitutionally entrenched bills of rights. It has since been fueled by the proliferation of international human rights instruments, which has increased with the end of the Cold War. Significant attention was first paid to comparative constitutional structure, but many states have now reached another stage. As notably witnessed by the works of the Council of Europe and especially those of the Venice Commission in the domain of constitutional justice, the question now is no longer about constitutionalism, including whether rights should be constitutionally protected, as much as it is about constitutional justice: how to effectively implement constitutions. Both on a regional and a global level, mutual inspiration is increasingly drawn from the case-law of peer Courts of other countries and even other continents, which gives rise to a cross-fertilisation phenomenon. One constitutional principle that emerges from, and which is still being forged by, such cross-fertilisation is the principle according to which the limitation of human rights and freedoms must be proportional to states’ objectives, that is, the principle of proportionality. More specifically, our topic is about both the historical process of jurisprudential cross-fertilisation and its functional result as far as the principle of proportionality is concerned. We speak from a Canadian perspective. The aim here is to be able to distinguish between what is common and what is distinctive about the Canadian approach