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

2.  The term of the measure may be extended only insofar as the duration of the measure does not 
exceed five years as a result of such extension, unless the measure is imposed on a defendant as 
referred to in section 77s(3, second sentence). In such a case the measure may be extended 
insofar as its duration does not exceed seven years. In its decision extending the measure, the 
court shall set the date on which the measure, except for further extension, shall be unconditionally 
terminated. In the case of extension of the measure, the measure shall be conditionally terminated 
one year before the duration of the measure set by the court expires. Section 77s(7) shall apply 
mutatis mutandis. 
3.   Extension shall only be possible if the measure is imposed for a serious offence against or 

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endangering the physical integrity of one or more persons. Section 77s(1)( b) and (c) shall apply 
mutatis mutandis. 
4.   An application for extension of the measure of detention in an institution for juveniles shall be 
heard by the three-judge division of the District Court. 
5.   The application shall be accompanied by:  
a.  a recently drawn up, reasoned and signed opinion from the head of the institution, and 
b.  a copy of the records pertaining to the physical and mental condition of the convicted offender. 
 
6.   The measure may be extended without the opinion specified in subsection (5)(a), if such cannot 
be given due to a lack of cooperation on the part of the convicted offender.