"Voters are identified by the Register not by faces."

Incorrect. 

I make a point of opting out of the Motor Voter program in BC and the Federal Election data exchange with CRA, so I have to produce Government Issued Photo ID for every Federal, Municipal and School District Election. My CRA RPO box is in another riding, so it wouldn't be any use for the Federal Election anyway.

For Provincial Elections I am a Protected Voter, with my name not on the Poll Station Voter List and my address is not accessible to Elections Branch Staff. I have to vote at the District Electoral Head Office and produce Photo ID.