Section 410.30. Declaration of delinquency

If  at  any  time  during  the period of a sentence of probation or of
  conditional discharge the court has reasonable cause to believe that the
  defendant has violated a condition of the sentence, it may  declare  the
  defendant  delinquent  and  file  a  written declaration of delinquency.
  Upon  such  filing,  the  court  must  promptly  take   reasonable   and
  appropriate  action  to  cause the defendant to appear before it for the
  purpose of enabling the court to make a final determination with respect
  to the alleged delinquency.
    * NB Effective until November 1, 2009