The law says
IRPR r. 3636 An inspection carried out aboard a means of transportation bringing persons to Canada or the questioning of persons embarking on or disembarking from a means of transportation, or the examination of any record or document respecting such persons before they appear for examination at a port of entry, is part of an examination but does not constitute a complete examination.
Justice Laws is the authoritative version. If this copy and it ever differ, Justice Laws wins.