IPC Section 19

The word “Judge” denotes not only every person who is officially designated as a Judge, but also every person.
who is empowered by law to give, in any legal proceeding, civil or criminal, a definitive judgment, or a judgment which, if not appealed against, would be definitive, or a judgment which, if confirmed by some other authority, would be definitive, or who is one of a body of persons, which body of persons is empowered by law to give such a judgment.