If you use false materials to defraud loans in the process of lending, you can be suspected of fraud. If private lending cannot be repaid, it is a civil dispute and does not involve criminal offences. You can ask for a judgment repayment through court prosecution.

According to the Criminal Code of People's Republic of China (PRC)

Article 313 Whoever refuses to execute the judgment or ruling of a people's court, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or a fine.

Extended data:

The criminal law stipulates the crime of refusing to execute the legal documents in force by the people's court. If the circumstances are serious, it shall be sentenced to fixed-term imprisonment of not more than three years.

The premise of this sentence is that if the loan is not repaid, the people's court will make a judgment after the creditor files a lawsuit with the court; If the debtor refuses to pay back the money, the creditor may provide evidence that the person subjected to execution has property and does not pay back the money, and apply to the people's court for enforcement.

Therefore, if the debtor has money, it is best to pay it back in time, and don't make the creditor angry, otherwise he will go to jail.

References:

China People's Congress Network-People's Republic of China (PRC) Criminal Law