Pennsylvania constitution
Article V: the judiciary
Section 24

The selection of the first members of the Judicial Inquiry and Review Board shall be made as follows: one judge of the Superior Court, one non-judge member of the bar of the Supreme Court, and one non-lawyer member shall be selected for two-year terms; one judge of the Superior Court, one non-judge member of the bar of the Supreme Court, and one non-lawyer member shall be selected for four years terms; one judge of the court of common pleas shall be selected for a term of two years, one for a term of three years, and one for a term of four years.