WatchingTV Online: The “CSI effect”

April 27, 2010

The “CSI effect”

Television dramas that rely on forensic science to solve crimes are affecting the administration of justice. The Economist reports.

A new phrase has entered the criminological lexicon: the “CSI effect” after shows such as “CSI: Crime Scene Investigation”. In 2008 Monica Robbers, an American criminologist, defined it as “the phenomenon in which jurors hold unrealistic expectations of forensic evidence and investigation techniques, and have an increased interest in the discipline of forensic science.”

Now another American researcher has demonstrated that the “CSI effect” is indeed real. Evan Durnal of the University of Central Missouri’s Criminal Justice Department has collected evidence from a number of studies to show that exposure to television drama series that focus on forensic science has altered the American legal system in complex and far-reaching ways. His conclusions have just been published in Forensic Science International.

The most obvious symptom of the CSI effect is that jurors think they have a thorough understanding of science they have seen presented on television, when they do not.
... According to Mr Durnal, prosecutors in the United States are now spending much more time explaining to juries why certain kinds of evidence are not relevant. Prosecutors have even introduced a new kind of witness—a “negative evidence” witness—to explain that investigators often fail to find evidence at a crime scene.