Article 11 2

2.   The investigation shall be concluded within 12 months. That period may be prolonged in duly justified cases. In the case of a suspension of the investigation as set out in Article 6, that period of suspension shall not be counted as part of the duration of the investigation. Where the period for the investigation is prolonged, the duration of the prolongation shall be added to the total duration of the proceedings laid down in paragraph 1 of this Article.