|(Decree n ° 74-808 of September 19, 1974 art. 4 Official Journal of September 29, 1974) (Law n ° 86-1319 of December 30, 1986 art. 1 Official Journal of December 31, 1986) (Law n ° 89-549 of August 2, 1989 art. 27, art. 28 Official Journal of August 8, 1989) (Law n ° 91-72 of January 18, 1991 art. 1 Official Journal of January 20, 1991) In the event of a dispute, the judge to whom it is up to assess the regularity of the procedure followed and the real and serious nature of the reasons invoked by the employer, form his conviction in view of the elements provided by the parties and if necessary after all investigative measures that he considers useful. In the event of an appeal relating to dismissal for economic reasons, the employer must communicate to the judge all the information he has provided to the staff representatives in application of Articles L. 321-2 and L. 321-4 or, failing that employee representatives in the company, all the information provided to the competent administrative authority in application of article L. 321-7 of this code.
If there is any doubt,* Note – Law 89-549 of August 2, 1989 art. 36: date of application of the provisions of this law. *