62 Pa.C.S. § 562

Collusion among bidders or offerors is unlawful. Every contract, combination or conspiracy which unreasonably restrains trade among bidders or offerors is unlawful. Contracts so arrived at may be declared void at the option of the Commonwealth. In addition to remedies available to the Commonwealth in the Federal courts, there shall be the same remedies in the courts of this Commonwealth. When any person has reason to believe collusion or other anticompetitive practices have occurred among any bidders or offerors, a notice of the relevant facts shall be transmitted to the Attorney General, who shall investigate the reports.