United States v. Jackson

38 M.J. 106, 1993 CMA LEXIS 123, 1993 WL 413833
CourtUnited States Court of Military Appeals
DecidedSeptember 28, 1993
DocketNo. 68,114; CMR No. 29011
StatusPublished
Cited by13 cases

This text of 38 M.J. 106 (United States v. Jackson) is published on Counsel Stack Legal Research, covering United States Court of Military Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States v. Jackson, 38 M.J. 106, 1993 CMA LEXIS 123, 1993 WL 413833 (cma 1993).

Opinion

Opinion of the Court

GIERKE, Judge:

A general court-martial composed of officer members convicted appellant, contrary to his pleas, of wrongfully using marijuana, in violation of Article 112a, Uniform Code of Military Justice, 10 USC § 912a. The approved sentence provides for a bad-conduct discharge, confinement for 30 days, and reduction to airman. The Court of Military Review affirmed the findings and sentence in an unpublished opinion dated April 10, 1992. This Court granted review of the following issue:

WHETHER THE MILITARY JUDGE COMMITTED PREJUDICIAL ERROR BY INSTRUCTING THE MEMBERS NOT TO REGARD THE ADMISSIONS MADE BY THE PROSECUTION’S EXPERT WITNESS ON CROSS-EXAMINATION FOR THE TRUTH OF THE MATTERS CONTAINED THEREIN.

The prosecution’s case rested solely on the basis of a positive urinalysis (Pros. Ex. 7). The laboratory report regarding the urinalysis was identified and explained at length by a government expert, Dr. William Sweet.

The defense consisted of an attempt to discredit the laboratory report by extensive cross-examination of Dr. Sweet, evidence of appellant’s good character, and the sworn testimony of appellant denying that he had used marijuana.

At issue are the instructions of the military judge concerning the proper use of matters developed during the defense cross-examination of Dr. Sweet. The defense cross-examination utilized two types of extrinsic sources: learned treatises discussing the pitfalls of urinalysis and quality-control reports from the laboratory. Appellant argues that Dr. Sweet made “admissions” which were diminished by the military judge’s incorrect instructions.

Dr. Sweet was asked by defense counsel to comment on the writings of several experts regarding the difficulties in conducting an accurate urinalysis. The following are pertinent excerpts from defense counsel’s cross-examination:

Q: Now, Dr. Dubowski has written the following, and I would like to ask whether you agree. He’s written, “Unfortunately, the second major characteristic of immunochemical assays in general, in addition to their high sensitivity, is their cross-reactivity, that is their response to other sample constituents that the one antigen used to produce the antibody, ____ This propensity, in effect; ... can produce false positive results.” Would you agree with that statement, Dr. Sweet?
A: As a statement of a generally recognized problem, yes I would agree with that statement. Whether or not—I would have to read the rest of the written material surrounding that, to see precisely what limits he was placing on that statement.
Q: But at this point, as a general statement—
A: —But as a general, broad statement, yes, that’s correct. That would be a statement, I think, that could be ascribed to by most anyone in the field.
Q: Okay. I’m going to read you a quotation again from Dr. Dubowski, and I’m going to ask you whether you agree with it. “No one knows how many dozens, hundreds, or thousands of other chemical compounds can or will have an identical retention time, peak shape, and end detector response if present in the sample and amenable to the extraction procedure used. Phrased differently, the identification of a presumed anti-like by typical GC [108]*108entities, such as retention time or retention index, is distinctly an assumption.” A: That’s just what I said, yes. With the kind of—same kind of caveats that we’ve discussed in the last quotation that you read from him, yes I would agree with that.
Q: Dr. Fredericks himself has written the following: “In the selective ion monitoring mode,” which is the one we’re talking about.
A. Yes.
Q. “Only the ion currents of a few fragments characteristic of the anilide monitor, this mode offers greater sensitivity but at the expense of specificity, because identification is based on a less specific pattern.” Would you agree with that statement?
A: As far as it goes, which isn’t quite far enough, yes I would agree with it.

The cross-examination then shifted to the quality-control reports. The reports were not introduced in evidence but were used to cross-examine Dr. Sweet regarding his claim of 100% accuracy. The reports reflect that a certain number of “runs” were rejected by quality-control inspectors because of technical defects in the analyses.

Defense counsel first cross-examined Dr. Sweet about a quality control report for January 1990. Counsel noted that “out of 42 runs done in January, six were marked as unacceptable” and “four were unacceptable because of unacceptable blinds.” (Blinds are known samples used to test the accuracy of the testing process.) Asked what was meant by “unacceptable blinds,” Dr. Sweet responded, “It means any of several things,” including the possibility “that the concentration for the blinds were not in the expected range.” Defense counsel asked if the blinds were unacceptable “because you were expecting a certain result and you didn’t get them,” and Dr. Sweet agreed.

Defense counsel then questioned Dr. Sweet about the report for February 1990, reciting that “this report states, Dr. Sweet, that of 44 runs, five were unacceptable and were associated with an apparent problem in the extraction procedure____manifested by the appearance of extraneous peaks eluting prior to the THC.” Asked to comment, Dr. Sweet explained that it was a problem occurring “periodically over the last several years, in which at random intervals there are clusters of runs in which a peak appeared on the chromatogram, in addition to the THC acid peak, and eluding [sic] earlier than that THC acid peak.” Dr. Sweet explained that the problem exists “in the peak recognition software” of the computer and that the computer “will then look at the retention time of that peak and see that it is not THC, not the same retention time,” and erroneously conclude that “it’s a different compound,” because “it says that the THC is out of the allowable range, retention time, and therefore, it is not THC.” Dr. Sweet testified that the problem had been investigated for several years but that its cause was unknown and “will probably come up again sometime.”

Defense counsel then turned to the quality-control report for March 1990, which recited “that on 32 runs, confirmations for THC, three were unacceptable because of chromatography.” He asked Dr. Sweet to define “poor chromatography.” Dr. Sweet defined it as “[essentially, peak shapes that are not idealized bell shape curves,” due to “multiple causes that are not clearly understood.” Asked if some urine samples do not test well by chromatography, Dr. Sweet replied:

That is correct. Occasionally a urine has been declared presumptive positive by RIA, but acceptable chromatography could not be achieved on that urine, and it is reported out as unfit for testing.

Asked to explain why “acceptable chromatography” cannot be achieved, Dr. Sweet responded:

It’s unknown basically. There are speculations and hypotheses, but there is not an adequate level of proof to say with any degree of assurance that this is the cause or these two things are the most probable causes.

[109]*109Defense counsel then turned to a memorandum for record dated April 1990 and questioned Dr.

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Bluebook (online)
38 M.J. 106, 1993 CMA LEXIS 123, 1993 WL 413833, Counsel Stack Legal Research, https://law.counselstack.com/opinion/united-states-v-jackson-cma-1993.