But the C.S.I. effect is often more negative than positive. Experts argue that the C.S.I. shows have simplified a very complex system of analyzing evidence and prosecuting criminals. With special effects, computer graphics, and eye-catching images on screen, the complicated process of uncovering evidence and analyzing seems so easy on TV. Regrettably, criminals are paying greater attention to the show. Police are finding more and more cases of murderers using bleach to remove blood stains or fingerprints. These are techniques from previous C.S.I.