Article R824-1 of the French Commercial code
The notifications and summonses provided for in this chapter shall be made by registered letter with acknowledgement of receipt, by hand delivery against a receipt, by bailiff’s deed or by any other means enabling the date of its receipt to be ascertained. When service is effected by a bailiff, the bailiff shall proceed in accordance with the procedures set out in articles 555 to 563 of the Code of Criminal…