sources, which can provide much more information than an examination with normal white light. >> if you look at the gauze pad under white light and you see absolutely nothing, you may go to an alternate light source and find a material which has oozed from the bite mark that does react to the alternate light source. >> under the alternate light source, an image appeared on the bandage. >> the shape of the image on the bandages was elliptical. it had the same type of measurement you would look at when you see a bite mark. and i told them it was very possible this actually was a bite mark. >> investigators now had legal authority to inspect brandon bloss' body. on his left forearm was the clear impression of a fresh bite wound.