Another method of authenticating video images is to show scientifically that an image has not been altered or conversely that alteration has occurred. One such method has been the use…
Authentication and the Use of Audit Trails
In order for video evidence to be admitted at trial, the tendering party must prove that the images are authentic. There are a number of technical approaches that are available…
Authenticating Monitor Photographs
The proper method of presenting surveillance video evidence at trial is to show all relevant authenticated images that have been exported from the DVR or server. Occasionally, the only evidence…
Date and Time Stamp Accuracy
Date and time stamps are superimposed on video images for the laudatory purpose of indicating the time the events depicted actually occurred. In reality, date and time stamps are often…
Evidence Required to Authenticate Surveillance Video: Part 1
Most serious cases have surveillance video evidence that may prove to be valuable. When I have such a case, my first task is to ascertain how I will authenticate the…
Evidence Required to Authenticate Surveillance Video: Part 2
In an earlier post, I set out the evidence that was required in order to properly authenticate surveillance video, namely evidence about the system that captured the images, exporting and…
Computer Generated Evidence: What Must the Expert Know?
In many areas of scientific expertise, computers are used to generate what will often be used as evidence in court. Examples include video image clarifications, 2D and 3D modelling, collision…
Video Evidence
The admissibility of video evidence at trial is contingent upon the tendering party establishing the authenticity of the video. Authentication is the process of proving that the video images are…
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