Illegal immigration to Canada

Illegal immigration to Canada is the act of a person who is not a Canadian citizen or permanent resident entering or remaining in Canada in a manner contrary to the Immigration and Refugee Protection Act and its associated regulations. That includes persons who entered Canada on a travel visa but remained beyond the period of stay specified as well as persons who entered Canada without presenting themselves at a port of entry.

Source: Wikipedia — Illegal immigration to Canada (CC BY-SA 4.0)