The provisions governing the expulsion, suspension and exclusion of students, whether graduate or undergraduate, full-time or part-time, shall be prescribed by Ordinances or Regulations which, except where such expulsion, suspension or exclusion is based upon academic failure, shall include provision for a right on the part of any student to be heard in person by a Committee of the Senate before any decision to expel, suspend or exclude such student is taken, together with a right to appeal to the Council against any such decision. Such Ordinances or Regulations shall also provide that a student electing to be heard as aforesaid may be accompanied by one adviser of his or her own choice who may speak on his or her behalf, and that a student may call witnesses and question witnesses upon whose evidence the case against him or her is based.