New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 15-58

a. A case shall be held to involve or to grow out of a labor dispute when the case involves persons who are engaged in industry, trade, craft, employment, or occupation; or who are members of an affiliated organization of employers or employees; whether such dispute is (1) between 1 or more employees and 1 or more employers; (2) between 1 or more employees and an association or associations of employees or employers; (3) between an association or associations of employees and any other association or associations of employees; (4) between 1 or more associations of employees and 1 or more employers or associations of employers; or when the case involves any conflicting or competing interests in a “labor dispute” (as hereinafter defined) of “persons participating or interested” therein (as hereinafter defined).

b. A person or association shall be held to be a person participating or interested in a labor dispute if relief is sought against him or it, and if he or it is engaged in the industry, trade, craft, or occupation in which such dispute occurs, or has a direct or indirect interest therein, or is a member, officer, or agent of any association of employers or employees engaged in such industry, trade, craft, or occupation.

c. The term “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, or concerning employment relations, or any other controversy arising out of the respective interests of employer and employee, regardless of whether or not the disputants stand in the proximate relation of employer and employee.

d. The word “person” as used in this article shall include the plural thereof and shall include and be taken to mean any organization of such persons. Wherever used in this article, the words “plaintiff”, “employer”, “employee”, and “proximate relation of employer and employee” shall include the plural thereof.