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We present the design of a novel, mobile, and contact-less, fingerprint line scanner and blood vessel mapper. This system provides a means for acquiring fingerprints with less than 1% distortion in extremely high resolutions, presenting an ideal technology for high-security and individual identification applications. We envision a difficult scenario where patrolling law-enforcement officers would use this miniature fingerprinting system. In this scenario, a police officer will stop a driver for a traffic violation and require the driver to put one (or a few) of his fingers on the testing equipment. The driver's fingerprint will be stored by the mobile system and instantly transferred through a wireless connection to a laptop located in the cruiser. Simultaneously, the laptop will wirelessly send the collected information to a data center. It is expected, that before the officer completes his written report he will receive on the laptop the information about the driver's criminal record (if any). The mobile fingerprinting system is compatible with AFIS and APIS system. The current study describes advantages of line scanning and challenges of the mobile, miniature design.