I would like to add that in the case of pardons and criminal record suspensions, the situation is the same today. We can't demand that other countries remove this information from their systems.
Applicants who have gone through customs in the past and whose passage was mentioned by customs officials normally carry with them the Parole Board of Canada decision. This document shows that their offence has been expunged or that they have obtained a pardon or a record suspension. This is usually how this information can be removed from the systems of other countries.
Be that as it may, we don't have the power to require these countries to remove it from their systems.