There are one or more investigating judges in each département.
Where there are several judicial courts in a department, a decree may determine the list of courts in which there is no investigating judge. This decree specifies the judicial court whose investigating judge or judges are competent to hear information concerning offences falling within the scope of Article 43, of the jurisdiction of the public prosecutor of the court in which there is no investigating judge.
In some judicial courts, investigating judges are grouped together in an investigating division.
Investigating judges forming an investigating division have sole jurisdiction to hear information giving rise to a co-investigation under the conditions set out in Articles 83-1 and 83-2.
They also have exclusive jurisdiction over information relating to crimes and remain so in the event of a change in the nature of the facts during the course of the investigation or its resolution. However, in the case of a crime punishable by fifteen years’ or twenty years’ imprisonment, where it has not been committed as a repeat offence, and if the public prosecutor considers that it results from the circumstances of the case and its lack of complexity that recourse to co-investigation, even in the course of the investigation, seems unlikely, he may request that the investigation be opened with the investigating judge of the judicial court in which there is no investigating division.
The list of courts in which there is an investigating division and the territorial jurisdiction of the investigating judges who make up the division are determined by decree. This jurisdiction may cover the jurisdiction of several judicial courts. One or more investigating judges may be appointed, taking into account any specialisations provided for by articles 704,706-2,706-17,706-75-1 and 706-107, to coordinate the work of the investigating judges within the division, in accordance with the conditions laid down by decree.