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