The Executive Board issued a subpoena asking how long the detention would be

If the Enforcement Bureau issues a subpoena for questioning, the person will be detained for more than fifteen days or even longer

As for the specific situation of the court subpoena asking for execution, the following is a detailed answer,

1. The enforcement court issues a summons to prove that the case has entered the enforcement procedure, and the court will take enforcement measures in accordance with the law.

2. The subpoena from the execution court is used to summon the person subject to execution to the scene for investigation or questioning. If the person subject to execution receives the summons, it proves that the court has opened a case for enforcement. If the person subject to execution still fails to perform after the summons is issued, the court will take enforcement measures.

3. Compulsory execution measures include sealing, detaining, freezing, transferring, auctioning, and selling off the property of the person subject to execution; for those who evade execution or refuse to execute, the court may also impose fines, detention, and other penalties. The circumstances are serious and constitute the crime of refusing to execute the judgment or ruling, and criminal liability shall be investigated in accordance with the law. The mandatory detention period shall be less than fifteen days, and the specific detention period shall be determined by the court. Detention must be approved by the president of the People's Court, and a detention decision shall be delivered to the party concerned. The specific detention period will be notified to the party in the detention decision. Legal basis: Article 115 of the "Civil Procedure Law of the People's Republic of China" stipulates that the amount of fine imposed on an individual shall be less than RMB 100,000. The amount of fine imposed on the unit shall be not less than RMB 50,000 but not more than RMB 1,000,000. The period of detention shall be no more than fifteen days. Detainees shall be handed over by the People's Court to the custody of the public security organs. During the period of detention, if the detainee admits and corrects his mistakes, the people's court may decide to release the detention in advance. Article 116 of the Civil Procedure Law of the People's Republic of China, summons, fine, and detention must be approved by the president. A custodial summons shall be issued. Fines and detention must be imposed in a written decision.

If you are dissatisfied with the decision, you may apply for reconsideration to the People's Court at the next higher level. Execution will not be suspended during the review period. Article 117 of the "Civil Procedure Law of the People's Republic of China" takes compulsory measures to obstruct civil proceedings must be decided by the people's court. Any unit or individual who illegally detains others or illegally and privately seizes others' property to pursue debts shall be held criminally responsible in accordance with the law, or be detained or fined.