Video images can provide significant information about what occurred during an event and about the people involved. Being an objective observer, the video camera records the events that occurred before…
Stay Within Your Lane!: The Importance of Knowing Your Boundaries as an Expert Witness
When an expert witness is tendered before the court, the attorney presenting the witness must advise the judge as to the specific field(s) of expertise in which the attorney wants…
Case Study: Failure to Authenticate Surveillance Video Leads to Exclusion of Evidence
Authentication is a prerequisite for the admissibility of video evidence. As discussed in several articles on this website, failure by the tendering party to lead sufficient reliable evidence to prove…
A Brave New World?: Authenticating Electronic Evidence and the Impact of FRE Rule 902(14)
In the United States, the Federal Rules of Evidence (FRE) govern many aspects of evidence admissibility in federal cases. Given that many states have adopted portions of the FRE, the reach…
Always Have a Plan “B” For Your Courtroom Presentation
In my “Courtroom Testimony for Expert Witnesses” course, I discuss the importance of multi-modal learning. While the delivery of an expert witness’s evidence will, by necessity, be largely testimonial, it…
Peer Review: The Obligations of the Peer Reviewer and the Expert
Peer review is an often overlooked but important step in the finalization of an expert report. Once an expert has completed his/her expert report, especially one in which the expert…
Case Study: Expert Witness Claims Expertise Not Actually Present
In a previous post entitled “Interpreting Video Images: The Role of the Forensic Video Analyst,” I discussed the important role that a forensic video analyst can play in providing expert…
Interpreting Video Images: The Role of the Forensic Video Analyst
Do you see what I see? Looking at video evidence does not mean that you will actually see all that the video has to offer. Expert interpretation of video evidence…
Image Comparison Evidence: The United States Experience
Image comparison evidence can be a very powerful form of evidence in court. This kind of expert forensic video analysis evidence is frequently challenged by opposing attorneys. Through this evidence,…
Frame Rate: Understanding the Impact of Frame Rate on Video Interpretation
Surveillance video does not always have a frame rate that allows for continuous or near continuous recording of an event. Frame rates may be reduced to account for multiple camera…
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