For a person to be put onto that public database, the first step is that the person already has to have been the subject of a public interest disclosure by provincial and territorial local authorities. If they meet that first test of being already identified publicly in a public interest notice—there can be public interest notices for not just sex offenders but also for murderers, and so on—then they also have to meet the qualification of being a high-risk child sex offender as well.
On February 2nd, 2015. See this statement in context.