A hand-held barcode scanner includes a fingerprint reader for reading fingerprint data from a digit of an operator of the barcode scanner. Preferably, an operator's digit can be comfortably placed on the fingerprint reader while the operator is scanning barcodes. This type of barcode scanner may be used...http://www.google.de/patents/US7878409?utm_source=gb-gplus-sharePatent US7878409 - System and method for verifying identity during data entry with a barcode scanner
