In Bill C-309, the way the bill is proposed, the offence that would be committed is first the offence of riot or unlawful assembly. Then the crown would have to show that the person wore the mask to conceal their identity.
There were some questions, I understand, from looking at the transcripts of the earlier committee meetings, about the approach taken here. The committee might be interested to know that section 255 of the Criminal Code has a similar approach, which is the impaired driving offence. You have a section in that model. If there's an impaired driving offence, it's one penalty, but if the impaired driving causes bodily harm or death, you have a higher penalty that applies. I would suggest this is a similar approach.