The jurisdiction of high court is defined in the constitution. But, unlike the Supreme Court, its jurisdiction extends to both judicial and administrative matters. It is mainly because a high court is the highest court in the province, and supervises the work of the subordinate courts in it.

The writ jurisdiction

flows from the constitution, while its appellate jurisdiction in civil and criminal matters flows from the law such as the civil and criminal procedure codes of Pakistan. We shall here confine ourselves to that part of its jurisdiction which is conferred by the constitution.
The high court has original jurisdiction in certain matters, such as cases of the contempt of court, writs, etc.