Article 828 Federal Labor Law

Once the inspection evidence is admitted by the Court, it shall designate the day, hour and place for its taking; if the documents and objects are in the possession of any of the parties, the Court shall warn it that, in case of not exhibiting them, the facts sought to be proven shall be presumed true, provided that they are the documents referred to in article 804 of this Law. If the documents and objects are in the possession of persons outside the controversy, the coercive measures that proceed shall be applied.