Section 53

No alteration or addition shall, without the consent of the Chief Inspector, be made to any machinery, equipment, plant or article which may have contributed to cause an accident resulting in the death of any person or a dangerous occurrence, nor shall any alteration or addition be made without such consent to the site of the fatal accident or the dangerous occurrence, except that nothing herein shall operate to interfere with rescue work or work necessary for the general safety of life and property.

It shall be presumed, unless it is proved to the contrary, that any alteration or addition as is referred to in subsection (1) has been made by the occupier of the factory, unless the occupier is not the employer of the injured or deceased person.[49B