Article 177: Appointment of Supreme Court Judges
1. The Chief Justice of Pakistan and each of the other Judges of the Supreme Court shall be appointed by the President in accordance with Article 175A.
2. A person shall not be appointed a Judge of the Supreme Courtunless he is a citizen of Pakistan and-
a. has for a period of, or for periods aggregating, not less than five years been a judge of a High Court including a High Court which existed in Pakistan at any time before the commencing day or
b. has for a period of, or for periods aggregating not less than fifteen years been an advocate of a High Court including a High Court which existed in Pakistan at any time before the commencing day.