Biometric Scanner is now being used in passports and visa for easy identification of citizens. This actually prevents fraud and entry as well as exit of criminals or those still being detained for security reasons. It actually based on an approach called cognitive biometrics where it uses fingerprints, facial recognition and others and linking it to an already existing computer biometric datasheet. Therefore, the computer database matches the fingerprints, hand, in some cases, even the eye for identification of the individual. Therefore, it does not take an intellect for one to figure out why it is being used in passport and visa. The biometric scanner software is software, which is providing an inbuilt scanning system to work out the biometric scanner operation in the implemented areas. The biometric scanner is present in most of the biometric equipments to scan the facial, fingerprint geometry or any other recognizable element and compares it with the database of the computer to find the identification of a specific individual. The biometric scanner operation is a major one in the identification finding process but it does that within a moment. In the scanning operation, the scanner takes the small size of geometry or any other physical parts and compares it with the data similarity, which is present in the database.