From the Introduction: "The Computer Forensics Tool Testing (CFTT) program is a joint project of the Department of Homeland Security Science and Technology Directorate (DHS S&T), the National Institute of Justice; and the National Institute of Standards and Technology (NIST) Special Programs Office and Information Technology Laboratory. [...] The objective of the CFTT program is to provide measurable assurance to practitioners, researchers, and other applicable users that the tools used in computer forensics investigations provide accurate results. Accomplishing this requires the development of specifications and test methods for computer forensics tools and subsequent testing of specific tools against those specifications. [...] This document reports the results from testing the disk imaging function of E3 Version 2.3 using the CFTT Federated Testing Test Suite for Disk Imaging, Version 3.1."
U.S. Department of Homeland Security: https://www.dhs.gov/