With those types of checks, before a volunteer can be accepted by the organization to volunteer, the person will have to present themselves to the municipal police force and submit a request to have a check done. The police organization itself does the check, and they will check the SOIRA and other sources. They'll go through them to see if there's a conviction that's been registered against a person with that name at that point in time.
On February 21st, 2019. See this statement in context.