12. (1) The Headmaster of each school shall be Honorary commanding officer of the companies constituted for his school under sub-section (1) of section 4 and the primary responsibility for enforcing discipline in those companies shall rest on him. (2) With the approval of the Chief of Army Staff the Headmaster of each school may frame rules for the punishment of cadets who wilfully and without reasonable cause absent themselves from parades held for imparting the prescribed military training or who are otherwise guilty of conduct to the prejudice of good order and discipline in the Junior Cadet Corps. (3) In addition to any other punishment, which the Headmaster may specify therein, the rules made under sub-section (2) shall provide for the subjection of the offender to extra drill for twenty minutes.