samples exact matches or substantially similar matches are indicative that the biometric information captured is an exact match with previously captured information a very unlikely occurrence as such when the biometric information sample is substantially similar or exactly the same as a previous biometric information sample record playback is suspected and the individual is prompted for another instance of biometric information when the biometric information sample is substantially unique the individual is identified and corresponding action is performed some corresponding actions are system access unlocking a door logging access providing personal information billing the individual etc referring to fig5 a simplified flow diagram of a method according to the invention of detecting record playback is shown biometric information in the form of a fingerprint from a biometric information source of an individual in the form of a fingertip is captured using a biometric information input device in the form of a contact imager the biometric information is characterised the characterised digitised biometric information is registered with stored templates to locate a template that within a predetermined level of security in the form of a predetermined false acceptance rate matches the characterised information when a match is detected a predetermined number of stored registration values associated with the individual are compared with the current registration value for example the last 10 unique registration values are stored exact matches or substantially similar matches are indicative that the biometric information captured is an exact match with previously captured information a very unlikely occurrence of course a similar method is applicable to the flow diagrams of fig3 and 4 as well for example for the.