Once a Pardon is granted, who can see that a criminal record existed?

All information pertaining to convictions will be taken out of the Canadian Police Information Centre (CPIC) and may not be disclosed without permission from the Minister of Public Safety Canada. This applies only to records kept within federal departments and agencies. However, many of the provincial and municipal law enforcement agencies cooperate by restricting access to their records once notified that a Pardon has been granted or issued.