(1) "Labor dispute" includes any controversy concerning terms or conditions of employment, or concerning the association or representation of persons in negotiating, fixing, maintaining, changing or seeking to arrange terms or conditions of employment, regardless of whether or not the disputants stand in the proximate relation of employer and employee.
(2) A case involves or grows out of a labor dispute when the case involves persons who are engaged in the same industry, trade, craft or occupation, or who have direct or indirect interests therein, or who are employees of the same employer, or who are members of the same or an affiliated organization of employers or employees, whether such dispute is: (a) Between one or more employers or associations of employers and one or more employees or associations of employees; (b) between one or more employers or associations of employers and one or more employers or associations of employers; or (c) between one or more employees or associations of employees and one or more employees or associations of employees; or when the case involves any conflicting or competing interests in a labor dispute of persons participating or interested therein.
(3) A person or association is a person participating or interested in a labor dispute if relief is sought against the person or association, and if the person or association:
(a) Is engaged in the same industry, trade, craft or occupation in which such dispute occurs.
(b) Has a direct or indirect interest therein.
(c) Is a member, officer or agent of any association composed in whole or in part of employers or employees engaged in such industry, trade, craft or occupation. [Amended by 1987 c.158 §130]