A blurry photo deemed unusable by detectives decades ago became the key piece of evidence that solved a 20-year-old cold murder case and led to an arrest.

In what has been dubbed the “CSI Effect,” juries place a high premium on forensic evidence presented by an expert witness ... class but cannot be used to identify an individual. For example, blood ...

The research, conducted by the University of Dundee’s Leverhulme Research Centre for Forensic Science, examined whether ...