Development of a low-cost embedded system for an optical-forensic device

In this article, we describe a new method for fingerprint detection and the development of an embedded system therefor. The method uses the scattering of fingerprint residues to make latent fingerprints visible. It could be used in situations where contact less and fast work is required, e.g. when searching for fingerprints on improvised explosive devices (IED). Also, this method can be used in one practical device that is appropriate for the work at crime scenes where mobile systems are needed. The designed embedded system runs on a low cost Raspberry Pi. Furthermore, it displays results on a touch-screen which makes it very user friendly. The developed system is integrated in a case with the optic elements to test the method and the system in practice.