18. Every officer, director, employee, agent or adviser of an association of employees who authorizes, encourages or incites a person to strike in an establishment, in the absence of an agreement or decision referred to in section 7, or authorizes, encourages or incites a person to contravene the terms of an executory agreement or decision, is guilty of an offence and is personally liable, on summary proceeding, in addition to the costs, to a fine of $2 000 to $10 000 for each day or part of a day during which the offence continues.
The association of employees whose officer, director, employee, agent or adviser is guilty of an offence mentioned in the first paragraph, is a party to such offence and is liable to the penalty provided for in the same manner as such person.