Relevant legal basis:
In the second paragraph of Article 223 of the Procedures for Handling Criminal Cases by Public Security Organs, if it is necessary to seal up real estate such as land and houses or specific movable property such as ships, aircraft and other large-scale machinery and equipment that is not suitable for moving, it shall be approved by the person in charge of the public security organ at or above the county level, and a decision on sealing up shall be made.
Relevant provisions on the application of seizure and freezing measures to criminal cases handled by public security organs Article 5, paragraph 1? According to the needs of investigating crimes, public security organs can seal up real estate such as land and houses involved, as well as specific movable property such as vehicles, ships, aircraft and large machinery and equipment involved. When necessary, legal documents and documents proving their property ownership or related rights and interests may be seized together.
People's Republic of China (PRC) Civil Procedure Law
Article 100? If the judgment may be difficult to execute or cause other damage to one party due to one party's behavior or other reasons, the people's court may, upon the application of the other party, order the property to be preserved, order it to do certain acts or prohibit it from doing certain acts; If the parties do not apply, the people's court may also order the adoption of preservation measures when necessary.
Article 103 Property preservation shall be sealed up, detained, frozen or other methods prescribed by law. After the people's court has preserved the property, it shall immediately notify the person whose property has been preserved. Property that has been sealed up or frozen shall not be sealed up or frozen again.