During the 1880s, while Americans hunted seals on the Pribilof Islands, which the US had acquired from Russia in 1867, Canadians conducted sealing in the open waters. In 1886 US government revenue cutters, claiming to protect "American property," began seizing Canadian sealing vessels.
Refugees and asylum seekers flee their countries in hopes of safety abroad. Governed by the 1951 UN Refugee Convention, refugee status is a matter of both international and domestic law. Historically, Canada has assisted many refugees from all over the world. However, human migration is a complex phenomenon, and Canada's refugee policies are also not immune to the influence of political and popular opinion.
Immigration detention falls under the framework of administrative law — the person being detained has not committed a crime under Canada's Criminal Code, but is being detained for immigration reasons.