There are no mandatory provisions in the law. If it is more conducive to the investigation to be present in person, you can allow me to participate. ?The survey and inspection shall be recorded in written form, signed or sealed by the persons and witnesses who participated in the survey and inspection. Link to legal articles: "Criminal Procedure Law"

1. Article 50. . . It must be ensured that all citizens who are related to the case or know the facts of the case have the conditions to objectively and fully provide evidence. Except under special circumstances, they can be recruited to assist in the investigation.

2. Article 52: People's courts, people's procuratorates and public security organs have the right to collect and obtain evidence from relevant units and individuals. Relevant units and individuals should truthfully provide evidence.

3. Article 131: The inspection and inspection shall be recorded in written form, signed or sealed by the persons and witnesses who participated in the inspection and inspection.