Article 783 Federal Labor Law

Every authority or person outside the proceeding who has documents in his possession that may contribute to the clarification of the truth must provide them, at the latest at the Trial Hearing, up until before the close of the instruction, when they are required of him by the Court.

With respect to the ordinary individual proceeding referred to in chapter XVII of Title Fourteen of this Law, the documents must be provided at the Preliminary Hearing or, failing that, up until before the close of the instruction. The Courts must take the pertinent measures to comply with this provision.