A criminal act refers to an act that a criminal violates the provisions of the criminal law and constitutes a crime. It is the basis of the constitution of crime in criminal law and the basis for the actor to bear criminal responsibility.

Legal basis: Article 84 of People's Republic of China (PRC) Civil Procedure Law * * * The service of litigation documents must have a receipt, 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.