Legal basis: Article 6 of "Several Opinions of the Supreme People's Court on People's Courts Handling Loan Cases" can be higher than the bank's interest rate, and local people's courts can specifically grasp it according to the actual situation in the region, but the maximum shall not exceed 4 times (including interest rate) of the bank's similar loan interest rate. Beyond this limit, the excess interest will not be protected. Article 10 stipulates that a loan relationship formed by one party against its true meaning by means of fraud, coercion or taking advantage of the danger of others shall be deemed invalid. Article 1 1 stipulates that the lender knows that the borrower is borrowing money for illegal activities, and its lending relationship is not protected. Article 13 stipulates that in the loan relationship, the person who only plays the role of contact and introduction does not assume the guarantee responsibility. If there is a real intention to guarantee the performance of the debt, it shall be recognized as a guarantor and bear the guarantee responsibility.