I agree entirely with that.
The problem is, if they appear at a port of entry claiming to be persecuted in their own country, we have no idea that they've been convicted and sentenced to 10 years' imprisonment. No criminal check would have been done. They just arrive at the port of entry and claim persecution, so we let them in.
If the board found that they were in fact a genuine refugee, then the process would start for their landed immigrant status. Then we might discover three or four years later that this is a person who in fact has a criminal record, and a very serious one. Then we would start the deportation proceedings.
Again, unless Bill C-43 passes, this person would have full access to appeals and humanitarian review and could seek leave to appeal to the Federal Court and do what many others have done to stall and delay.