30.— (1) No offence is committed under section 26 where a registered pharmaceutical assistant acts on behalf of a registered pharmacist during the temporary absence of the registered pharmacist.

(2) Rules made by the Council with the consent of the Minister may, for the purposes of subsection (1), provide further as to—

(a) what may or may not be done by a registered pharmaceutical assistant when acting on behalf of a registered pharmacist,

(b) what constitutes the temporary absence of a registered pharmacist.