Forgery is invalid. If there is evidence to prove that the court staff forged their signatures, they should bear legal responsibility.
Article 84 of the Civil Procedure Law requires a receipt for the service of litigation documents, and the addressee shall record the date of receipt on the receipt and sign or seal it. The date of receipt by the addressee on the service receipt shall be the date of service.
According to the newly revised Provisions of the Supreme People's Court on Evidence in Civil Proceedings, Article 63 stipulates:
The parties shall make a true and complete statement of the facts of the case. If the statements of the parties are inconsistent with the previous statements, the people's court shall order them to explain the reasons, and examine and determine them in combination with their litigation capacity, evidence and the specific circumstances of the case. If a party intentionally makes a false statement to obstruct the trial of the people's court, the people's court shall, according to the circumstances, punish it in accordance with the provisions of Article 111th of the Civil Procedure Law.
If you make a false statement in court, you will not only bear the consequences of losing the case, but also receive a ticket from the court and even be detained! If a crime is constituted, criminal responsibility shall be investigated according to law.