Ms. Nathalie Levman at the Justice and Human Rights Committee

There are a few, but there is some dispute in the case law about when custodial rights are extinguished, so I can't give you a clear answer.

I suppose there could be some rare cases where custodial rights are extinguished. I would imagine that a family court would have very good reason for doing that, meaning there was some risk of harm that the parent posed.