24 Pa. Stat. § 11-1128
The board shall have power to issue subpoenas requiring the attendance of witnesses at any hearing and shall do so at the request of the party against whom a complaint is made. If any person shall refuse to appear and testify in answer to any subpoena issued by the board, any party interested may petition the court of common pleas of the county setting forth the facts, which court shall thereupon issue its subpoena commanding such person to appear before it, there to testify as to the matters being inquired into. Any person refusing to testify before the court shall be held for contempt. All testimony at any hearing shall be taken under oath, and any member of the board of school directors shall have power to administer oaths to such witnesses.
24 P.S. § 11-1128