1. Method for identifying suspected counterfeit and/or counterfeit banknotes paid into an automatic teller machine, wherein banknotes to be paid in are checked for authenticity on the basis of data from a sensor device, comprising the steps: linking data from the sensor device for the suspected counterfeit and/or counterfeit banknotes to an identity of a payer, storing the data concerning the suspected counterfeit and/or counterfeit banknotes and the identity of the payer, generating checking data for the suspected counterfeit and/or counterfeit banknotes by means of the sensor device or a sensor device similar to said sensor device, wherein checking data are generated by the sensor device or similar sensor device for one or more possible positions of the suspected counterfeit and/or counterfeit banknotes, comparing the checking data with the stored data concerning the suspected counterfeit and/or counterfeit banknotes and determining the data concerning the suspected counterfeit and/or counterfeit banknote, which has the closest agreement with the respective checking data, and identifying the respective suspected counterfeit and/or counterfeit banknote using the identity of the payer which is linked with the closest agreement to the data concerning the suspected counterfeit and/or counterfeit banknote.