Article R621-1 of the French Code governing the entry and residence of foreign nationals and the right of asylum
The administrative authority competent to take the surrender decision pursuant to articles L. 621-1 to L. 621-7 is the departmental prefect and, in Paris, the police prefect.However, in the cases provided for in articles L. 621-2 and L. 621-3, the prefect may delegate his signature to a police officer in departments sharing a border with one or more Member States of the European Union or the Swiss Confederation for surrender…