Times have changed. Borders, too. Frequent business travelers know that and leave earlier to allow for longer security controls. But they are sometimes astonished when a border officer declares them inadmissible to Canada for criminality.
A new environment
Nowadays, border officers work in an enforcement environment. A much greater emphasis is now put on security controls and safety, without any consideration for the individual’s position or the purpose and duration of his visit to Canada. Where border officers in the past may have used their good judgment in assessing risks, they are now applying strict guidelines and a zero tolerance discipline toward visitors with any sort of criminal history.