22 Pa. Stat. § 26
It is unlawful for the holder of a license issued under this act, or for any employe of such licensee, knowingly to commit any of the following acts, within or without the Commonwealth of Pennsylvania: to incite, encourage, or aid in the incitement or encouragement of, any person or persons who have become a party to any strike to do unlawful acts against the person or property of any one, or to incite, stir up, create, or aid in the inciting of discontent or dissatisfaction among the employes of any person, partnership, association, or corporation with the intention of having them strike, to interfere or prevent lawful and peaceful picketing during strikes, to interfere with, restrain, or coerce employes in the exercise of their right to form, join, or assist any labor organization of their own choosing, to interfere or hinder the lawful or peaceful collective bargaining between employes and employers, to pay, offer, or give any money, gratuity, favor, consideration, or other thing of value, directly or indirectly, to any person, for any verbal or written report of the lawful activities of employes in the exercise of their right of self-organization, to form, join, or assist labor organizations, and to bargain collectively through representatives of their own choosing, to advertise for, recruit, furnish or replace, or offer to furnish or replace, for hire or reward, within or without the Commonwealth of Pennsylvania, any help or labor, skilled or unskilled, or to furnish or offer to furnish armed guards, other than armed guards theretofore regularly employed, for the protection of payrolls, property or premises, for service upon property which is being operated in anticipation of or during the course or existence of a strike, or furnish armed guards upon the highways for persons involved in labor disputes, or to furnish or offer to furnish to employers or their agents, any arms, munitions, tear gas, implements, or any other weapons, or to send letters or literature to employers offering to eliminate labor unions, or distribute or circulate any list of members of a labor organization, or to advise any person of the membership of an individual in a labor organization for the express purpose of preventing those so listed or named from obtaining or retaining employment. The violation of any of the provisions of this section shall constitute a misdemeanor, and, upon conviction thereof, shall be punishable by a fine of not less than five hundred dollars ($500) nor more than five thousand dollars ($5000), or to imprisonment for not less than six (6) months nor more than one (1) year or both. If the holder of a license shall violate any of the provisions in this section, the license holder may be subject to the revocation of his license by the issuing authority. Upon the second conviction of a license holder for violation of any of the provisions in this section, the license of said holder shall be revoked.
22 P.S. § 26