It depends. Ordinary debt is a civil case. If the debtor overdraws beyond the prescribed limit or time limit for the purpose of illegal possession, and fails to return it after being collected by the issuing bank for more than 3 months, it is a malicious overdraft and constitutes the crime of credit card fraud. It is a criminal case and will be investigated for criminal responsibility.
Legal objectivity:
criminal law
Article 196
Whoever commits credit card fraud in any of the following circumstances, if the amount is relatively large, 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.