As you accumulate course work, conferences, training, and experience during your professional career, it is natural to ask whether and when you can be considered an expert and be tendered…
Reverse Projection Photogrammetry: When is Measurement Uncertainty an Issue of Admissibility?
A home security video surveillance system captured relevant events that transpired outside the home before and after two murders were committed nearby. Of note, it recorded images of a person…
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…
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…
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…
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 Technology and Visual Literacy Issues in the Rittenhouse Trial
The November 2021 trial in State of Wisconsin v. Rittenhouse garnered significant media attention across the United States, in part because of its rather sensational facts, and in part because…
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 Canadian 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…
The Search for the Truth in Images Requires Competent Experts, Forensic Tools, and Counsel
The recent (November 2021) high profile American murder prosecution (State of Wisconsin v. Rittenhouse) has garnered considerable media attention, primarily because of the polarizing views on the propriety of Rittenhouse…
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