ABSTRACT
A nanometer (nm) is 109m. Since the human eye cannot capture light outside the visible range, special photographic techniques using ultraviolet and infrared light have been developed for this purpose [1]. With varying light wavelengths illuminating the photographed object, very different appearances of the object can be portrayed. This is especially relevant in documenting patterned injuries such as bitemarks, stab and gunshot wounds, fingernail scrapes, etc. The techniques can highlight damaged from normal tissue. Ultimately, a more complete and comprehensive collection of photographic evidence is obtained (Fig. 1-6).
