 One of the largest empirical studies of the CSI effect was undertaken in 2006 by Washtenaw County Circuit Court Judge Donald Shelton and two researchers from Eastern Michigan University . They surveyed more than 1 @,@ 000 jurors , and found that while juror expectations for forensic evidence had increased , there was no correlation between viewership of crime shows and tendency to convict . One alternate explanation for the changing perception of forensic evidence is the so @-@ called " tech effect " : as technology improves and becomes more prevalent throughout society , people develop higher expectations for the capabilities of forensic technology . Shelton described one instance in which a jury member complained because the prosecution had not dusted the lawn for fingerprints , a procedure which is impossible and had not been demonstrated on any crime show . A later study by the same authors found that frequent CSI viewers may place a lower value on circumstantial evidence , but their viewership had no influence on their evaluation of eyewitness testimony or their tendency to convict in cases with multiple types of evidence . 
