Section 761 - Original jurisdiction(a) General Rule.--The Commonwealth Court shall have original jurisdiction of all civil actions or proceedings: (1) Against the Commonwealth government, including any officer thereof, acting in his official capacity, except: (i) actions or proceedings in the nature of applications for a writ of habeas corpus or postconviction relief not ancillary to proceedings within the appellate jurisdiction of the court;(ii) eminent domain proceedings;(iii) actions or proceedings conducted pursuant to Chapter 85 (relating to matters affecting government units);(iv) actions or proceedings conducted pursuant to the act of May 20, 1937 (P.L. 728, No. 193), referred to as the Board of Claims Act; and(v) actions or proceedings in the nature of trespass as to which the Commonwealth government formerly enjoyed sovereign or other immunity and actions or proceedings in the nature of assumpsit relating to such actions or proceedings in the nature of trespass.(2) By the Commonwealth government, including any officer thereof, acting in his official capacity, except eminent domain proceedings.(3) Arising under Article V of the act of May 17, 1921 (P.L. 789, No. 285), known as "The Insurance Department Act of 1921." (4) Original jurisdiction of which is vested in the Commonwealth Court by any statute hereafter enacted.(b) Concurrent and exclusive jurisdictionThe jurisdiction of the Commonwealth Court under subsection (a) shall be exclusive except as provided in section 721 (relating to original jurisdiction) and except with respect to actions or proceedings by the Commonwealth government, including any officer thereof, acting in his official capacity, where the jurisdiction of the court shall be concurrent with the several courts of common pleas.(c) Ancillary mattersThe Commonwealth Court shall have original jurisdiction in cases of mandamus and prohibition to courts of inferior jurisdiction and other government units where such relief is ancillary to matters within its appellate jurisdiction, and it, or any judge thereof, shall have full power and authority when and as often as there may be occasion, to issue writs of habeas corpus under like conditions returnable to the said court. To the extent prescribed by general rule the Commonwealth Court shall have ancillary jurisdiction over any claim or other matter which is related to a claim or other matter otherwise within its exclusive original jurisdiction.1976, July 9, P.L. 586, No. 142, § 2, effective 6/27/1978. As amended 1978, April 28, P.L. 202, No. 53, § 10 (6.1), effective 6/27/1978; 1978, Sept. 28, P.L. 788, No. 152, § 2, imd. effective; 1980, Oct. 5, P.L. 693, No. 142, §§ 203(a), 221, (b), 324(a), effective in 60 days; 1980, Dec. 5, P.L. 1104, No. 189, § 1, imd. effective; 1982, Dec. 20, P.L. 1409, No. 326, art. II, § 201, effective in 60 days.