Every person is liable to a penalty, imposed by the Authority, who, without lawful excuse,—
(a) refuses to allow a representative of a union to enter a workplace; or
(b) obstructs a representative of a union in entering a workplace or in doing anything reasonably necessary for or incidental to the purpose for entering the workplace; or
(c) wilfully fails to comply with section 21.
Compare: 1991 No 22 s 14(5)