There may be a legitimate question that the Intoxlyzer 5000 does discriminate against African-Americans. This test is in use throughout much of DoD. It seems at least worth researching and filing a Houser motion in regard to this technology if your client is African-American, and perhaps if the client is a woman. See United States v. Houser, 36 M.J. 392 (C.A.A.F. 1993), which sets out six factors a judge should use to determine the admissibility of expert testimony. In my view, Houser can be used also to challenge the actual “science” underlying testimony for something such as a breath-test machine. In United States v. Griffin, 50 M.J. 278 (C.A.A.F. 1999), the Court of Appeals for the Armed Forces makes specific the application of the Daubert factors under a Houser analysis.
Colin Miller, KKK In A Box?: Connecticut To Replace Controversial Intoxilyzer 5000 With Equally Controversial Alcotest 7110 MKIII-C, EvidenceProf Blog, 15 February 2009.