After many years of leading and relying upon image-based evidence in the courtroom, teaching international imagery law in several countries, and recently being awarded a PhD from Leiden University in…
Troubling Trend in Expert Image Comparison Evidence in Canada?
A recent Canadian case has highlighted an apparent issue that is affecting how some courts are assessing the probative value and admissibility of expert image comparison evidence. This article reviews…
State Supreme Court Adopts Forensic Image Comparison Opinion: Issues Raised by the Evidence
Forensic image comparison, wherein questioned images are compared to known images to determine similarities and differences in image content, has been the subject of judicial commentary in courts in Canada,…
Who is Qualified to Express an Opinion on Image Comparison?
A fundamental question in the forensic process of image comparison is what qualifies a proposed expert to express such an opinion for the court’s consideration. Various contenders ranging from people…
Canadian Court Restricts Evidence of Forensic Video Analyst in Murder Trial
In preparation for a Canadian homicide prosecution, a forensic video analyst performed several technical and analytical processes on video images that captured relevant events. The defence objected to most of…
Image Comparison Evidence in the UK: Have Things Changed?
I research, write, and lecture about international imagery law. In preparation for upcoming courses in the UK this summer, I was reviewing recent case law and came across a March…
Court Restricts Forensic Video Analyst in Image Comparison Opinion Evidence
In Canada and the United States, courts rarely limit the ability of a qualified forensic video analyst to provide image comparison opinions. Conversely, in the United Kingdom, the Forensic Science…
FSR responds to “Evaluation of the Forensic Science Regulator’s recommendations regarding image comparison evidence”
In my August 26, 2019 article posted on this website, I included the evaluation I conducted of the UK Forensic Science Regulator’s directives to change image comparison evidence in the…
“Evaluation of the Forensic Science Regulator’s recommendations regarding image comparison evidence”
I have recently published an article in the scientific journal Forensic Science International: Synergy. Here is the abstract: Expert image comparison evidence can be a vastly helpful tool in the…
Case Study: Trial Judge Performs Image Comparison When Crown Fails to Present Expert Evidence
In R. v. Ermine, 2018 SKQB 77 (Saskatchewan Court of Queen’s Bench), the trial judge was placed in the position of having to conduct his own video analysis because the…
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