Automatic tabulators aren't used at the federal level for elections, but ones manufactured by Dominion Voting Systems were used in the party leadership race where Justin Trudeau became Liberal leader. A photo of him voting in that 2013 contest became part of the swirl of internet conspiracy speculation about the machines.
Dominion Voting's systems have also been used by the federal Conservatives and numerous provinces and municipalities.
Conservative party uses dominion for its leader selection, I believe.
I heard it was Liberal party that uses it for their party leader selection
Could be both!
https://www.ctvnews.ca/politics/this-is-unfortunate-inside-elections-canada-after-trump-s-tweet-on-voting-machines-1.5251743