legal ground
Article 2 of the Provisions of the Supreme People's Court on the Seal-up, Seizure and Freezing of Property in Civil Execution of People's Courts.
The people's court may seal up, detain and freeze all movable property, immovable property, specific movable property and other property rights registered in the name of the person subjected to execution.
Unregistered buildings and land use rights shall be determined according to the approval documents of land use rights and other relevant evidence.
If the third party confirms in writing that the property belongs to the person subjected to execution, the people's court may seal up, detain or freeze the movable property possessed by the third party or the immovable property, specific movable property and other property rights registered in the name of the third party.