What We See in the Media- The CSI Effect

The CSI Effect

  • The CSI Effect refers to how television shows and popular media that feature forensic science—like CSI, Bones, or Law & Order—can shape the public’s expectations about real-life forensic evidence (Khanna & Resnik, 2021; Chin & Workewych, 2016).
  • Because crime dramas often show investigators solving cases quickly and with “perfect” scientific results, some jurors may expect equally flawless evidence in actual trials (Chin & Workewych, 2016).
  • According to scholars Vikas Khanna and Scott Resnik, when jurors see dramatic forensic technology on TV, they may:
    • Expect forensic evidence in every case, even when it is not necessary or available (Chin & Workewych, 2016).
    • Overestimate the accuracy of forensic methods such as DNA, fingerprints, or biometric technologies like iris recognition (Khanna & Resnik, 2021).
    • Believe that forensic science always produces definitive answers — when in reality, many methods have limitations and possible error rates (Chin & Workewych, 2016).

(Williams, 2026)

 

  • For jurors, understanding the CSI Effect is important because it helps separate fictional portrayals from realistic, scientifically supported evidence. Good juror decisions rely not on TV-like certainty, but on thoughtful evaluation of what the evidence actually shows (Chin & Workewych, 2016).
  • It is important to focus on the actual evidence presented in court, rather than what we’ve seen on screen, so decisions are based on facts—not fiction.
  • Much of what is shown in the media is an oversimplified or inaccurate portrayal of how forensic science is actually used and presented in real investigations (Chin & Workewych, 2016).

(Shacklock, 2022)