UNDERSTANDING “IN AID OF ITS APPELLATE JURISDICTION”
The phrase “in aid of its appellate jurisdiction” appears in some laws or rules on jurisdiction. For instance, P.D. No. 1606 provides that the Sandiganbayan shall have exclusive original jurisdiction over petitions for the issuance of the writs of certiorari, prohibition, mandamus, and habeas corpus, in aid of its appellate jurisdiction. Likewise, Section 4, Rule…