The Scientific Working Group on Digital Evidence (SWGDE) recently published two new documents for public comment; Comments on Forced Minimization Requirements for the Seizure of Digital Evidence and Crime Scene Critical Incident Videography Recommendations and Guidelines. As noted on their site, draft documents will be posted for a minimum of 60 days for public comment.
Additionally, several other documents were recently approved for release by SWGDE, including Best Practices for Photographic Comparision for All Disciplines (v1.0), Digital Image Compression and FIle Formats Guidelines (v1.0), and version 3 of Digital & Multimedia Evidence Glossary, among others. Visit https://www.swgde.org for more information.Add a comment
You can just press play if you want to, but if you're forensically processing evidence I wouldn't advise it. Know the playback software, as it is just as important to proper playback and interpretation as the hardware. Take Windows Media Player, for instance.Add a comment
This really should come as no surprise to folks in our industry, as Apple's support of QuickTime on Windows has waned over many years. It's also important to understand that I.T. is going to take a global approach to the new vulnerabilities, and will likely force removal of QuickTime from all hosts they control/manage. Your job, should you choose to accept it, is to explain to them why you are an exception, and to learn more about the available options and solutions to address your environment and needs. There are options.Add a comment
I just returned from another great week of DME training at our office out on the east coast last week. One of the themes I've come to recognize through my travels teaching the fundamentals of DME Processing, is that even some of the most seasoned technicians and analysts don’t really understand the significance of hardware to accurate and proper processing of DME. It’s completely understandable why, given the marketing messages of some DME vendors, the fact that we're all constantly asked to do more with less, and the rate of related technological advancements.Add a comment
On vacation, but thought I'd comment on this topic before getting on the Harley to go run some errands in the cold Pacific Northwest. As pointed out in someone else's recent blog post, MPEG-4 can leverage what is referred to as a Sample Aspect Ratio (SAR)...not to be confused with Storage Aspect Ratio (SAR) or Signal Aspect Ratio (SAR). It's important to note that in the case of MPEG-4, the Sample Aspect Ratio is the Pixel Aspect Ratio (PAR); they are one and the same.
It's also important to note, again, that regarless of any of these numbers, the shape of the samples from an analog source ARE NOT DEFINED BY THE NUMBER OF LINES.
Oh, one more thing...most multimedia NLE and encoding applications provide precise control of all of these settings. Just an FYI. All the best my friends.Add a comment
DVR Assessment & Video Recovery
Sept. 19-21, 2016 - Burtonsville, MD
This 3-day training course is recommended for anyone who will be responsible for the recovery of digital video evidence from CCTV systems.
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Image Clarification & Processing w/ClearID®
Sept. 22-23, 2016 - Burtonsville, MD
A 2-day training course on ClearID® version 3, including lecture and hands-on instruction designed for the beginner to intermediate level user.
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