The following words and phrases when used in this subchapter shall have, unless the context clearly indicates otherwise, the meanings given to them in this section:
"Bail commissioner." An arraignment court magistrate of the Philadelphia Municipal Court.
"Board." The board existing under Subchapter D of Chapter 21 (relating to Minor Judiciary Education Board).
"Judge." A judge of the Traffic Court of Philadelphia.
42 Pa.C.S. § 3111