The referee does not have to bear financial responsibility. Evidence is not a guarantee. However, you can be a witness and testify in court in the future. The premise is that the IOU should indicate who the witness is and have his own signature and handprint.

Generally speaking, witnesses are private loans between relatives and friends. In order to improve trust, a third party with no direct interest will be invited as a witness. If there is a loan dispute in the future, you can be a witness in court, and in real life, you will also invite neighbors or people you know around you as witnesses. Different from the reference, the guarantor has a much greater responsibility and needs to participate in the loan relationship. Although it will not earn interest, it will bear joint and several repayment responsibilities. As a guarantor, you need to sign a loan contract and verify capital if necessary. The bank will examine the qualifications of the guarantor. Those who do not meet the requirements cannot be used as guarantors.

There is no need to take on additional responsibilities. Even if the borrower refuses to repay in the future, the creditor can't ask the witness to repay. However, in civil disputes, witnesses, as witnesses, must be responsible for their own testimony, and if they provide false testimony, they must bear legal responsibility.

Article 392 of the Civil Code of People's Republic of China (PRC): If the secured creditor's right has both things and others' guarantee, if the debtor fails to perform the due debt or the parties agree to realize the security interest, the creditor shall realize the creditor's right in accordance with the agreement; If there is no agreement or the agreement is unclear, and the debtor provides the security of the property himself, the creditor shall give priority to the realization of the creditor's right with respect to the security of the property; Where a third party provides a property guarantee, the creditor may realize the creditor's right with respect to the property guarantee, or may require the guarantor to assume the guarantee responsibility. The third party providing the guarantee shall have the right to recover from the debtor after assuming the guarantee responsibility.

Article 687 General Guarantee refers to the guarantee that the guarantor shall bear the guarantee liability when the debtor fails to perform the debt, as stipulated by the parties in the guarantee contract.

The guarantor of a general guarantee has the right to refuse to undertake the guarantee liability to the creditor before the main contract dispute has been tried or arbitrated and the debtor's property has been enforced according to law, except in one of the following circumstances:

(1) The debtor's whereabouts are unknown and there is no property available for execution;

(2) The people's court has accepted the bankruptcy case of the debtor;

(3) The creditor has evidence to prove that the debtor's property is insufficient to perform all debts or cannot perform debts;

(4) The Guarantor waives the rights stipulated in this clause in writing.