1. Handling methods of overdue credit cards after criminal detention are as follows:

(1) During the prison term, the cardholder still needs to repay the credit card debt, and cannot be exempted from the credit card repayment responsibility by taking measures such as detention to restrict personal freedom. Banks still have the right to sue the parties for repayment;

(2) If the credit card is overdue during the prison term, the parties may entrust their families to repay the credit card debt on their behalf.

2. Legal basis: Article 196 of the Criminal Law of People's Republic of China (PRC).

Under any of the following circumstances, it constitutes the crime of credit card fraud, and if the amount is relatively large, it shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also be fined not less than 20,000 yuan but not more than 200,000 yuan; If the amount is huge or there are other serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than five years but not more than ten years, and shall also be fined not less than 50,000 yuan but not more than 500,000 yuan; If the amount is especially huge or there are other especially serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than 10 years or life imprisonment, and shall also be fined not less than 50,000 yuan but not more than 500,000 yuan or confiscated property:

(a) using a forged credit card, or using a credit card fraudulently obtained with a false identity certificate;

(2) Using an invalid credit card;

(3) Fraudulent use of another person's credit card;

(4) malicious overdraft.

The term "malicious overdraft" as mentioned in the preceding paragraph refers to the behavior that the cardholder overdraws beyond the prescribed limit or time limit for the purpose of illegal possession, and refuses to return it after being urged by the issuing bank.

2. What are the constitutive elements of the crime of credit card fraud?

1, the object of the crime of credit card fraud is the credit card management system and the ownership of public and private property;

2. The objective aspect of the crime of credit card fraud is that the actor uses the credit card to defraud public and private property by means of fictional facts or concealing the truth;

3. The subject of credit card fraud is the general subject, and natural persons can be the subject of credit card fraud;

4. The subjective aspect of the crime of credit card fraud is intentional, and it is direct intentional. Subjectively, the actor must also have the purpose of illegally possessing public and private property.