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SWGDE Minimum Requirements for Testing Tools Used in Digital and Multimedia Forensics

Scientific Working Group on Digital Evidence · Version 2.1, published 2024-03-07 · 2024

Identifier: SWGDE 18-Q-001-2.1

Access and status

Cost

Free

Free to read or download at source. No account, no purchase.

Status

Current

Current as at the verification date below. Standards and tools both move — confirm at source before you rely on it.

What it is

SWGDE's statement of the minimum a laboratory must do to test a tool before using it in casework, including what to record about the tool, the test data and the outcome. The version verified here is 18-Q-001-2.1 dated 7 March 2024.

Who it is for, and when

Read it if you are standing up a tool validation programme on a small budget and need a defensible floor rather than an ideal. It is the free, concrete complement to ISO/IEC 27041 and to the UK Regulator's FSR-G-218, and it is short enough to actually implement.

What it does not cover

It sets a minimum, not a full validation methodology, and it supplies no test datasets or reference images — you have to source those yourself. It does not certify or approve any tool, and it does not replace an accreditation body's assessment of your methods.

Go to the source

Open at swgde.org (opens in a new tab)

https://www.swgde.org/wp-content/uploads/2024/04/2024-03-07-SWGDE-Minimum-Requirements-for-Testing-Tools-Used-in-Digital-and-Multimedia-Forensics-18-Q-001-2.1.pdf

Details

Type
Standard or guidance
Written for
Working examinerAdvancedWorking examiner, Advanced
Publisher
Scientific Working Group on Digital Evidence
Version verified
Version 2.1, published 2024-03-07
Year
2024
Identifier
SWGDE 18-Q-001-2.1
Topics
tool-testing, validation, quality-assurance, us-federal
Checked at source
Standards are revised. Confirm the current revision with the publisher before citing this.
  • NIST's long-running programme that builds tool specifications, test assertions, test procedures and test data for categories of forensic function — disk imaging, hardware and software write blocking, deleted file recovery, file carving, string searching, media preparation, mobile device and cloud data extraction, Windows registry and SQLite tools — and publishes the resulting test reports with DHS Science and Technology.

  • A CFTT offshoot that packages NIST's test methodology so labs can run it themselves and optionally share results: distributed as bootable Linux ISOs and a portable Windows web-server build, with report templates. Current suites cover disk imaging, forensic media preparation, hardware write blocking, string searching, SQLite recovery, mobile device acquisition and cloud data extraction, with companion datasets in CFReDS.

  • A NIST repository of documented simulated digital evidence — images and data sets with known ground truth — developed with National Institute of Justice support. Holdings include scenario images (hacking case, data leakage case), Windows registry and Unicode string-search sets, Mac and mobile images, memory images, file carving and deleted-file-recovery sets, and reference/control drives.

  • An 18-page standard on showing that an investigative method is fit for purpose: capturing functional and non-functional requirements, describing the method, and producing evidence that the implementation satisfies those requirements. It explicitly addresses how vendor and third-party testing can be folded into your own assurance argument.

  • The Regulator's guidance on applying the validation requirements of the code of practice to digital forensic methods: demonstrating that a method is fit for its specific intended purpose and that its limitations are understood and stated.