When a period of four months has elapsed since the date of the last investigative act, the parties may refer the matter to the Investigating Chamber under the conditions provided for in the third paragraph of Article 173. This period is reduced to two months for the benefit of the person under investigation when he or she is remanded in custody.
Within eight days of receipt of the case file by the registry of the Investigating Chamber, the President may, by reasoned order not subject to appeal, decide that there is no need to refer the case to the Investigating Chamber.
When a case is referred to the investigating chamber, it may either evoke the case and proceed in accordance with the conditions set out in articles 201,202,204 and 205, or refer the case to the examining magistrate or to such and such other magistrate in order to continue the investigation.
If, within two months of the case being referred back to the investigating judge initially seised, no investigative act has been carried out, the case may again be referred to the investigating chamber in accordance with the procedure set out in the first and second paragraphs of this article. This time limit is reduced to one month for the benefit of the person under investigation when that person is remanded in custody.
The Investigating Chamber must then either raise the matter as set out in the third paragraph of this article, or refer the case to another investigating judge in order to continue the investigation.