The main body of bank card freezing is banks on the one hand and judicial organs on the other. Although banks operate the freezing of bank cards, they can decide the unit to freeze bank cards, which can be done by banks themselves or by judicial organs (including the public security inspection law) and ask banks to assist in freezing.

Nowadays, online fraud and online gambling are rampant, and many bank cards have a lot of money in and out. When the bank finds an abnormality, it will take the initiative to freeze the bank card so that the bank card cannot be transferred, but it is only temporarily frozen and will not handle the money in your card.

Secondly, the judiciary took the initiative to ask banks to freeze bank cards. Generally speaking, public security organs freeze more.