Notwithstanding any of the other provisions of this chapter and under such terms, conditions, limitations, qualifications and supervision as the Supreme Judicial Court shall by rule require, a senior law student who is enrolled in a law school which is approved by the American Bar Association, may appear in the courts of the State on behalf of the State or an agency thereof, or under the supervision of an organization providing legal services to the indigent approved by the Supreme Judicial Court on behalf of an individual receiving services through such organization. [1989, c. 755, (RPR).]