84. Liability of person for act, etc., of employee, etc.

Where any person would be liable to any punishment or penalty under this Act for any act, omission, neglect or default committed—

by that person’s employee in the course of his employment;

by that person’s agent when acting on behalf of that person; or

by the employee of that person’s agent when acting in the course of his employment with that person’s agent or otherwise on behalf of that person’s agent acting on behalf of that person, that person shall be liable to the same punishment or penalty for every such act, omission, neglect or default of that person’s employee or agent, or of the employee of that person’s agent.