For section 21 of the Act, the form of warrant is:
(a) in the case of a prisoner other than a prisoner who has been released on parole or is serving the suspended part of the sentence of imprisonment -- Form 5; and
(b) in the case of a prisoner who has been released on parole -- Form 6 ; and
(c) in the case of a prisoner who is serving the suspended part of the sentence of imprisonment--Form 6A.