Criminal Code Warning: this is not an official translation. Under all circumstances the original text in Dutch language of the Criminal Code (Wetboek van Strafrecht) prevails

Section 77cc 
1.  The court which sets the condition may, either upon receipt of an application from the Public 
Prosecution Service or from the convicted offender, reduce the probation period or extend it one 
time. The extension may not exceed one year. 
2.   Similarly, during the probation period or during its suspension the court referred to in subsection 
(1) may amend the special conditions set or change the term of operation of these conditions 
during the probation period, revoke these conditions, set special conditions and give, amend or 
revoke an appointment as referred to in section 77aa(2).