Interesting, that is a good point: http://lawiscool.com/2010/02/22/are-there-inalienable-rights...

But the constitutional rights and freedoms such as freedom of expression, a right against arbitrary detention or imprisonment, and even our right to life, liberty and security, are not absolute. The Charter leaves loopholes for the federal Parliament, provincial legislatures, or even judges to limit or take away any rights or freedoms. There are no inalienable rights in Canada.