Someone tampered with this video! Can you help me?

We have several tools and processes to evaluate file provenance and/or the presence of AI. However, sometimes what people think is tampering, may simply be artifacts of the encoding process used in creating highly compressed security files.

We evaluate with an open mind: Reviewing technical aspects such as block level structure, metadata, and AI detection; We also examine visual qualityies of video to evaluate for anomalies often found in AI generated content.

Do I get a report with your work?

We often start with verbal reports, to determine the full scope of what is needed for the case, and if there is a need to move forward.

Written Reports are typically required with the final delivery along with derivative files intended to evidentiary use. They provide legal required documnetation of our work, and required reports aid us in evaluating other expert opinions.

Our report explains the scientific basis for the work we perform, so the tiers of fact can have confidence in the findings. A thurough report is imperative to help protect everyone at trial and on appeal.

How do I get you files? Can I email?

Occasionally email can be used, but digital media is often too large. File size is limited and some email server may compress the file (which we want to avoid).

We prefer to have an Online repository such is Box, Dropbox, Transferability, or some other file sharing service. We offer a file server (Box.com) for uploading large files that is a simple drag and drop - but we can use what ever service you have, especially if other collaborators are already using it.

Case with lots of cameras and hours of footage are best delivered on a hard drive, using FedEx-ed or UPS tracked delivery. A good rule of thumb is what ever method you received the file, may be the proper way to get them to me. Provided the data was collected, archived, and delivered to you properly.

If you are unsure, please reach out and we will work with you on the best method of delivery for your case.

I have screen recordings on the videos, is that good?

We always want to work with the originals, when ever they are available. Working with screen recordings or other derivatives will eliminate pertinent metadata and file characteristics that are often imperative to file evaluation and authentication.

That said, depending on the questions being asked, of us and of the case in general, screen captures and other derivatives may be acceptable - if it is "Best Evidence." But if the non-originals change certain parameters, even under the best evidence rules, it may not aid in answering questions in your case. Distortions, Encoding Artifacts, Bitrates, Framerate, and NEW metadata are now "baked-in" to the file and can hinder a comprehensive review.

When in doubt...   When they exist...   When you want an in-depth review...

Get the Originals!

What is Camera Synchronization?

Multiple security cameras from one or more buildings? Store or Traffic cameras with overlapping perspectives?

Cameras sync'd into one view helps track movements. It can help track subjects to alternate cameras which might help identify clothing or other items such a cars and license plates. THis process has led to alternate suspects and additional witnesses.

Dash Cams, Body Cams, Security Videos... when synchronized, can paint a clearer picture of the larger scene, and can provide detailed timings and movement maps that help investigators and triers of fact understand complex scenes with lots of overlapping data.

Sound simple? What if every camera has different time offsets, framerates, bitrates, start and end times, time gaps... It gets complicated fast! We have experience sorting all of this into one comprehensive view.

Do you give testimony on your work?

Yes, we have been testifying in cases since 2009.

Testimony if typically needed if you want to use any demonstratives in court. Unless the work is very basic and the opposing counsel stipulates to the work done and allows reports to be exhibited uncontested.

However, once we do extensive work, advanced precesses like Photogrammetry, or offer any type of opinion, it is almost guaranteed you will need our testimony to admit the evidence and explain the scientific backing of the digital media technology and forensic processes used.

The good news is, this is an opportunity to educate the triers of fact and allow the lawyers to focus the jury on key area that the evidence shows. Our technical explanations can help strengthen seemingly weaker evidence or debunk seemingly strong evidence, when appropriate.