Method and Device for Identifying the Person Depositing Suspicious Banknotes at an Automatic Teller Machine

In a method for identifying the depositor of suspicious banknotes at an automatic teller machine, wherein the deposited banknotes are subjected to an authenticity test in the automatic teller machine and classified into authentic, forged and unsuspicious banknotes depending on the result of the authenticity test, and wherein the suspicious banknotes are subjected to a further test outside of the automatic teller machine, at least those banknotes which are classified as suspicious are provided with an imprint in the automatic teller machine, said imprint allowing the definitive assignment of the banknote to a specific transaction.