A Canadian immigration officer will decide if you can enter Canada when you apply for a visa or an Electronic Travel Authorization (eTA), or when you arrive at a port of entry.
If you’re found inadmissible, you’ll be denied a visa or an Electronic Travel Authorization (eTA), refused entry to, or removed from Canada.
You could be found inadmissible for a number of reasons, such as:
security reasons, including
espionage
subversion (attempts to overthrow a government, etc.)
violence or terrorism
membership in an organization involved in any of these
human or international rights violations, including
war crimes
crimes against humanity
being a senior official in a government engaged in gross human rights violations or subject to international sanctions
financial reasons – if you’re unable or unwilling to support yourself and your family members
misrepresentation, which includes providing false information or withholding information directly related to decisions made under the Immigration and Refugee Protection Act (IRPA)