When only one expert witness is presented at trial, the Court may find it difficult to critically evaluate the expert evidence. If the evidence is not controversial and both sides…
Next Online Courtroom Testimony for Expert Witnesses Course Announced: TBD 2025
The online Courtroom Testimony for Expert Witnesses course has continually been a great success! We have had participants from across Canada and the US, the UK, Norway, Australia, and New Zealand. The…
“Image-Based Evidence in International Criminal Prosecutions: Charting a Path Forward” is now available!
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 Rules on Admissibility of Expert Motion Tracking Evidence
In dynamic video-recorded scenes where several people move around within the frame and from camera to camera it can be difficult to accurately track the movement of individuals. This makes…
The Pedagogical Expert Witness: Teaching Complex Science in the Courtroom
The following article, applicable to experts in all areas of expertise, was written by me in conjunction with my Courtroom Testimony for Expert Witnesses course and will soon be published…
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…
Recent American Cases on Image Interpretation
Several times a year I conduct a comprehensive search of recent reported case law on topics related to video evidence, forensic video analysis, and pertinent expert witness testimony issues. This…
Legal Considerations and Recommendations for the Use of Terrestrial LiDAR Scanning for Criminal Justice Applications
Jonathan W. Hak, Q.C., Dipl., B.Sc., LL.B., LL.M., PhD Candidate[i] Introduction Accurate and detailed depictions of crime scenes, areas of interest, and objects provide investigators, counsel, and the court with…
California Court of Appeal Rules Upon the Propriety of Forensic Video Analysis Techniques Utilized by Expert
The California Court of Appeal recently had occasion to review certain forensic video analysis techniques employed by a forensic expert for the purpose of determining whether they were properly admitted…
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