If it is stolen, it is suspected of theft. (Pay attention to the last paragraph of Article 196 of the Criminal Law.) A low amount can constitute theft. If it is a forged credit card, or someone else's credit card is fraudulently used (such as finding someone else's credit card and using it), it is suspected of credit card fraud (fraudulently using a credit card, amounting to 5000 yuan, which constitutes a crime). If the bank card is fraudulently used by others and more than 5,000 yuan (including 5,000 yuan) is taken away, a case may be filed on suspicion of credit card fraud. The crime of credit card fraud belongs to the jurisdiction of the economic investigation department and is handled by the economic investigation department of the police station. If the money in the bank card is less than 5000 yuan, you can report it to the public security department of the local police station. If the circumstances are minor and do not constitute a crime, the public security organ may detain him for less than 15 days and impose a fine of less than 5,000 yuan. 2. What should I do if my bank card is stolen? If the bank card is stolen, the following points can be handled: 1. The cardholder should have made a transaction at the ATM of a nearby bank or spent money at a merchant again, which proves that the card has not been separated, thus proving that the cardholder has no responsibility. 2. Call the bank to verify in time, and report the loss of the stolen brush immediately. 3. Alarm processing. Print the account details in the bank, bring my bank card and ID card to the public security organ for alarm procedures, report to the local police station as soon as possible, and obtain the receipt or notice of the report. 4. If there is enough fake card evidence, for example, the customer proves that the card was stuck on himself within 20 minutes of being stolen, the bank will compensate 50% to 70% of the loss. If the bank card is stolen due to the negligence of the depositor in keeping the bank card or bank card password, the depositor shall bear the corresponding responsibility.