18 U.S. Code § 892 - Making extortionate extensions of credit
(a) Whoever makes any extortionate extension of credit, or conspires to do so, shall be fined under this title or imprisoned not more than 20 years, or both.
(b) In any prosecution under this section, if it is shown that all of the following factors were present in connection with the extension of credit in question, there is prima facie evidence that the extension of credit was extortionate, but this subsection is nonexclusive and in no way limits the effect or applicability of subsection (a):
(1) The repayment of the extension of credit, or the performance of any promise given in consideration thereof, would be unenforceable, through civil judicial processes against the debtor
(2) The extension of credit was made at a rate of interest in excess of an annual rate of 45 per centum calculated according to the actuarial method of allocating payments made on a debt between principal and interest, pursuant to which a payment is applied first to the accumulated interest and the balance is applied to the unpaid principal.
(3) At the time the extension of credit was made, the debtor reasonably believed that either
(A) one or more extensions of credit by the creditor had been collected or attempted to be collected by extortionate means, or the nonrepayment thereof had been punished by extortionate means; or
(c) In any prosecution under this section, if evidence has been introduced tending to show the existence of any of the circumstances described in subsection (b)(1) or (b)(2), and direct evidence of the actual belief of the debtor as to the creditor’s collection practices is not available, then for the purpose of showing the understanding of the debtor and the creditor at the time the extension of credit was made, the court may in its discretion allow evidence to be introduced tending to show the reputation as to collection practices of the creditor in any community of which the debtor was a member at the time of the extension.