1. Understand why the bank card is frozen. The parties concerned can call the official telephone number of the bank to inquire about the reasons for freezing, or go to the nearest police station to go through the relevant procedures, or go to the bank to go through the thawing procedures.

2. Determine whether it is involved. If you can determine that the bank card is not the property involved, you can apply for thawing according to law. When applying for thawing, relevant evidence should be submitted to the public security organ to prove that the property has nothing to do with the case.

3. Actively cooperate with public security organs. If it has not been thawed after three days, the parties concerned may choose to actively cooperate with the public security organs.

4. Entrust a professional thawing lawyer to handle it. Professional lawyers will guide the parties to fully understand the case information, collect favorable evidence materials, then prepare complete unfreezing materials, communicate with the public security organs to implement the treatment, control the communication rhythm, and protect the legitimate rights and interests of the parties to the greatest extent.

When the bank card is frozen, the following materials are required to apply for thawing:

1, to prove the legal identity of the party concerned, the company business license and ID card. If it is an employee card, it is necessary to provide the company authorization certificate and bank flow. If there are various honorary certificates, it is better to endorse the qualifications of government agencies.

2. Prove that the income involved is legal;

3. Prove the relationship between the parties and the final payer.

To sum up: the bank card is frozen by the Public Security Bureau generally because your bank card is related to some legal and public security cases. Because according to the law, the Public Security Bureau can't directly freeze personal bank accounts. Only because of handling cases or judicial needs can the Public Security Bureau report to the court to freeze the relevant bank accounts involved. Don't worry when your bank card is frozen by the Public Security Bureau. After cooperating with the public security investigation, if there are no other problems, the account will generally be unfrozen in time. It doesn't matter if it can't be thawed in time. The time limit for public security to freeze deposits, remittances and other property according to law is six months, and it will be automatically unfrozen at the expiration.

Legal basis:

People's Republic of China (PRC) Civil Procedure Law

Article 104

In a property dispute case, if the respondent provides a guarantee, the people's court shall make a ruling to lift the preservation.

Article 242

If the person subjected to execution fails to perform the obligations specified in the legal documents according to the notice of execution, the people's court has the right to inquire about the deposits, bonds, stocks, fund shares and other property of the person subjected to execution from the relevant units. The people's court has the right to seal up, freeze, transfer or change the property of the person subjected to execution according to different circumstances.

The property inquired, sealed up, frozen, transferred or changed in price by the people's court shall not exceed the scope of obligations that the person subjected to execution shall perform.

When the people's court decides to seal up, freeze, transfer or change the price of property, it shall make a ruling and issue a notice of assistance in execution, which the relevant units must handle.