Section 458: Variation of terms and conditions of probation

The court before which a defendant is bound by a recognizance under this Part to appear for conviction and sentence or for sentence may:(a) at any time if it appears to it on the application of the probation officer that it is expedient that the terms or conditions of the recognizance should be varied, summon the defendant bound by the recognizance to appear before it and if he fails to show cause why the variation should not be made:
(i) vary the terms of the recognizance by extending or diminishing the duration, which shall not exceed 3 years from the date of the original order, or
(ii) alter the conditions or insert additional conditions; or
(b) on application being made by the probation officer, and on being satisfied that the conduct of the defendant bound by the recognizance has been such as to make it unnecessary for him to be under supervision, discharge the recognizance.