Pennsylvania Statutes Title 43 P.S. Labor § 206i. Basis for labor injunctions

(a) That unlawful acts have been threatened and will be committed unless restrained, or have been committed and will be continued unless restrained, but no temporary or permanent injunction or temporary restraining order shall be issued on account of any threat or unlawful act, excepting against the person or persons, association or organization, making the threat or committing the unlawful act, or actually authorizing or ratifying the same after actual knowledge thereof.

(b) That substantial and irreparable injury to complainant's property will follow unless the relief requested is granted.

(c) That, as to each item of relief granted, greater injury will be inflicted upon complainant by the denial of relief than will be inflicted upon defendants by granting of relief.

(d) That no item of relief granted is relief which is prohibited under section six of this act.  1

(e) That complainant has no adequate remedy at law; and

(f) That the public officers charged with the duty to protect complainant's property are unable to furnish adequate protection.

Such hearing shall be held only after a verified bill of complaint and a verified bill of particulars specifying in detail the time, place, and the nature of the acts complained of, and the names of the persons alleged to have committed the same or participated therein, have been served, and after due and personal notice thereof has been given, in such manner as the court shall direct, to all known persons against whom relief is sought, and also to the chief of those public officials of the county and city, within which the unlawful acts have been threatened or committed, charged with the duty to protect complainant's property. The hearing shall consist of the taking of testimony in open court with opportunity for cross-examination and testimony in opposition thereto, if offered, and no affidavits shall be received in support of any of the allegations of the complaint.