(1) A member of the Garda Síochána or (other than for the purposes of paragraph (b)) a traffic warden may request the driver or person in charge of a vehicle—

(a) parking the vehicle in a place where restrictions or prohibitions on parking apply, or

(b) entering, driving on or otherwise using or leaving a road where restrictions or prohibitions apply to a vehicle,

under regulations or bye-laws under this Part, to allow the inspection by the member or warden of a permit exempting the vehicle and, if applicable, the driver or person, from the restriction or prohibition.

(2) Where a member or warden inspecting a permit under subsection (1) is of the opinion that—

(a) the permit is no longer in force,

(b) the permit does not apply to the circumstances or vehicle in which it is being used,

(c) the person using the permit is not entitled to use it, or

(d) the permit is altered or forged,

he or she may detain it.