"This article should help. Basically, we took 600 members of this unit back in 1950, from the UK, knowing exactly who they were. This is after the UK took a few thousand of them, again knowing exactly who they were. Government agreed to this, they didn't sneak in. In 1987, Canada investigated the group, "Charges of war crimes against members of the Galicia Division have never been substantiated" according to our Commission of Inquiry on War Criminals. From what I understand, Yaroslav Hunka was subject to a criminal background check prior to his attendance in Parliament. This did not apparently include a character investigation. I have no reason to believe protocol wasn't followed (whether protocol should be subjected to criticism should be further discussed). But it has predictably turned into a partisan shouting match to earn points in the never ending campaign season to which Canadians find themselves subjected."
It was basically an agreement between the Crown of England and Canada to take in Nazi collaborators an that is disgusting.
They are an affront to the Canadians who served and died in that war.