43 Pa. Stat. § 1101.1003
If a strike by public employes occurs after the collective bargaining processes set forth in sections 801 and 802 of Article VIII of this act have been completely utilized and exhausted, it shall not be prohibited unless or until such a strike creates a clear and present danger or threat to the health, safety or welfare of the public. In such cases the public employer shall initiate, in the court of common pleas of the jurisdiction where such strike occurs, an action for equitable relief including but not limited to appropriate injunctions and shall be entitled to such relief if the court finds that the strike creates a clear and present danger or threat to the health, safety or welfare of the public. If the strike involves Commonwealth employes, the chief legal officer of the public employer or the Attorney General where required by law shall institute an action for equitable relief in the court of common pleas of the jurisdiction where the strike has occurred or the Commonwealth Court. Prior to the filing of any complaint in equity under the provisions of this section the moving party shall serve upon the defendant a copy of said complaint as provided for in the Pennsylvania Rules of Civil Procedure applicable to such actions. Hearings shall be required before relief is granted under this section and notices of the same shall be served in the manner required for the original process with a duty imposed upon the court to hold such hearings forthwith.
43 P.S. § 1101.1003