If the needs of the investigation into a flagrant crime or a flagrant offence punishable by at least three years’ imprisonment so require, the public prosecutor may, without prejudice to the application of the provisions of Article 73, issue a search warrant for any person against whom there are one or more plausible grounds for suspecting that he has committed or attempted to commit the offence.
For the execution of this warrant, the provisions of Article 134 shall apply. The person discovered by virtue of this warrant shall be placed in police custody by the judicial police officer of the place of discovery, who may proceed to interview him, without prejudice to the application of Article 43 and the possibility for investigators already seized of the facts to travel to the scene in order to carry out the investigation themselves, after having if necessary benefited from an extension of jurisdiction pursuant to Article 18. The public prosecutor who issued the search warrant is informed as soon as the measure begins; this magistrate may order that, for the duration of police custody, the person be taken to the premises of the investigating department hearing the case.
If the person who was the subject of the search warrant is not discovered in the course of the investigation and if the public prosecutor requests the opening of an investigation against an unnamed person, the search warrant remains valid for the duration of the investigation, unless it is withdrawn by the investigating judge.