You can report to the Public Security Bureau if you don't pay back the money you borrowed, but the Public Security Bureau may not accept it. Because the Public Security Bureau is mainly responsible for criminal cases and public security management. The matter of borrowing money and not repaying it is a civil dispute. For civil disputes, the Public Security Bureau generally will not intervene. Both parties who borrowed money but did not repay it can resolve the issue through negotiation, arbitration, litigation, mediation, etc.
However, it should be noted that not all loans that are not repaid will not be accepted by the Public Security Bureau. Generally speaking, if one party defrauds others of money in the name of borrowing money, this behavior may constitute a crime of fraud. Fraud is a criminal case and the Public Security Bureau will intervene in the investigation.
For the crime of fraud, my country's "Criminal Law" stipulates: Whoever defrauds public or private property, if the amount is relatively large, shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or surveillance, and shall also or solely be fined; if the amount is huge or there are other serious If the amount is particularly huge or there are other particularly serious circumstances, the offender shall be sentenced to fixed-term imprisonment of not less than three years and not more than ten years, and shall also be fined; if the amount is particularly huge or there are other particularly serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than ten years or life imprisonment, and shall also be fined or his property shall be confiscated. and fines or confiscation of property. If this law provides otherwise, the provisions shall prevail.