None of the offences in these Regulations apply in relation to anything done in the course of his or her duties by—
(a) a person employed by a bus company who has duties in relation to the issue, inspection or collection of tickets for, or the operation of, a vehicle operated by the bus company;
(b) a member of the police force;
(c) any person appointed in writing by a bus company or the Secretary for the purposes of these Regulations;
(d) an employee, contractor or agent of a bus company.
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