The Zemi Method
An evidentiary methodology for investigation and assurance.
The Zemi Method is a published, versioned evidentiary methodology governing digital forensic investigation and AI assurance. Its premise is that every claim relevant to a decision, including claims produced by an organization's own systems, is a hypothesis until evidence from an independent source supports it.
The method defines five governing principles, a six-phase investigative lifecycle with a mandatory human adjudication gate, a categorical classification of findings as known, assumed, or undetermined, and a standing defensibility check.
Version note: The Zemi Method, Version 1.0 remains unchanged. The foundations companion was updated to Version 1.2 on July 19, 2026 to expand the recent digital forensic literature review following external review questions, including FACT, SOLVE-IT, DERDS, DECDs, peer review, reporting-practice, automation, AI, and uncertainty literature. Version 1.2 narrows positioning claims and records known limitations.
Visual Summary
Worked Examples
Worked examples are synthetic supporting artifacts. They illustrate how the method operates and are not evidence of application in a real engagement.
Current Files
Prior Companion Versions
Earlier companion versions remain available for comparison. The Zenodo DOI record preserves the original Version 1.0 publication package.
Zenodo DOI: 10.5281/zenodo.21418434
SHA-256 Hashes
These hashes identify the exact files published or maintained here.
73b5ab638bea58bfc50407e2f132a8954687f4155711fe541a074b0d109f8a379a73facc72b2b2107b443341c81f7eaa25388177eaf849f0743d013744f455ea039ccfec8aca3186efaf3042851b2545a4856e3db43acc09a895b11c6599460b69199fee9fd747f940f495757a7b01fab0605e24d198012c28c428b20e7e2905e3bb0aeed450e22d839f054cd6da61fc61b41656f79c9775460728906dec8359Preferred Citation
Watson, K. V. (2026). The Zemi Method: An Evidentiary Methodology for Investigation and Assurance, Version 1.0. https://doi.org/10.5281/zenodo.21418434