(a) The conditions of probation shall be such as the court in its discretion deems reasonably necessary to ensure that the defendant will not again violate the law. When a defendant is placed on probation, he shall be given a certificate explicitly stating the conditions on which he is being released.

    (b) The court may modify or enlarge the conditions of probation at any time prior to the expiration or termination of the probation term.

(Code 1964, § 7.500)

     State law reference(s)--Similar provisions, RSMo. § 559.021.