(a) upon a demand made by the general manager under
regulation 13 for a permit holder to surrender
his permit to the general manager.
Cancellation of permit.
9.
The general manager
-
(a) shall cancel a permit if it appears to him that
the permit holder
(i) is, for any reason related to or connected
with the security of the railway, not a fit
person to have access to a restricted area; or
(ii) has no valid or sufficient reason for having
access to a restricted area; and
(b) may cancel a permit
(i)
on the ground that any condition subject
to which it was issued has been contravened; or
(ii) on the ground that the permit holder or
his employer has contravened any of these
regulations; or
(iii) in any case where he is satisfied that
the permit has been lost, destroyed or defaced.