The Scientific Working Group on Digital Evidence (SWGDE) brings together organizations
actively engaged in the field of digital and multimedia evidence to foster communication
and cooperation as well as to ensure quality and consistency within the forensic
If these are your interests, we would like to welcome you to our site. We hope you will find
the information found within to be of benefit.
Mary Horvath, Chair Federal Bureau of Investigation
James Darnell, Vice Chair US Secret Service
- The September 2019 Meeting announcement, with hotel and travel guidance, has been emailed out to all members and approved guests. If you are a member or approved guest and did NOT receive the meeting announcement, please email the Chair. Anyone planning to attend the meeting must RSVP by September 4th. If you are new to SWGDE and would like to attend, you must first submit a Guest Attendance Request* located on our Membership page. *The funding window is now closed and we are only accepting new guest/membership applications for those who do not need funding/can self-fund. - New documents from the June 2019 meeting have been posted.
SWGDE is actively
encouraging new membership! Learn about attending a meeting as a guest or
applying for membership.
SWGDE's most recent published documents are:
SWGDE Best Practices for Mobile Device Evidence Collection and Preservation, Handling, and Acquisition
SWGDE General Photography Guidelines for the Documentation of Evidence Items in the Laboratory
SWGDE Technical Overview for Forensic Image Comparison
SWGDE seeks feedback from the DME community on our drafts for public
SWGDE Core Technical Concepts for Time-Based Analysis of Digital Video Files
SWGDE Best Practices for Digital Evidence Acquisition from Cloud Service Providers
SWGDE Best Practice for Frame Timing Analysis of Video Stored in ISO Base Media File Formats
Myth of the
Digital recordings are always better than analog recordings.
Category: All DME Myths
The fact that a recording is digital or analog is not a factor for quality. Digital factors include the sample rate and bit depth a recording is made at as well as the compression ratio if compressed while Analog factors include tape speed and equipment calibration. Most important in either case, however, is the microphone placement and proximity of the sound source as well as the environment where the recording is made. If these factors are not addressed or inadequate, any recording, digital or analog, will suffer.