Forensic Video Authentication Process:
- Establish a Chain of Custody: Determine how the video evidence was created, and who was involved in transporting & obtaining the evidence from the source. The most original video evidence is crucial for maintaining this chain of custody.
- Video Evidence Recovery: Sometimes it is necessary to recover the video evidence onsite when the original is available. This process assists the video forensic expert through examining the equipment that created the video recording.
- Physical Inspection: Examine the video evidence for signs of physical tampering, scratches, or dis-assembly.
- Intake: Create a bit for bit clone or carbon copy & HASH test analysis
- Visual Inspection: Carefully watch the video evidence. Use Frame by Frame analysis, Vector Scope Analysis, and Vector Detection Analysis, Slow Motion Analysis.
- Digital Inspection: Examining the digital properties of video evidence such as, EXIF or Metadata and Hexadecimal information, is crucial to determine if manipulation is present.
- Research the Equipment: It is important to the Video Forensic Expert to familiarize themselves with the equipment that was used to create the video evidence. Every case is a research project!
- Create an Exemplar: Re-Create the events as they occurred using the same technology or digital recorder that created the video evidence. Reverse Projection is an example using people.
- Observation: Note inconsistencies & anomalies. Create a formalized report stating results, and opinions.
- Courtroom Testimony: Document the video authentication process, providing notes taken, and state all forensic findings about the authenticity of the video evidence. The forensic report is used as the basis for courtroom testimony by the video forensic expert.
If you have a video that you question or need help understanding, please give me a call for a pro bono conversation. I apply my forensic expertise to cases in the United States and many countries around the globe. Any and all formats of audio and video accepted. Retainer agreement available on request; travel expenses will be quoted in advance excluding meal expenses and flat rate time for travel instead of hourly.