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not meet <strong>the</strong> test of Daubert v. Merrell Dow, 113 S. Ct. 2786 (1993),<br />

because Williams did not use <strong>the</strong> scientific method, which involves <strong>the</strong><br />

testing of hypo<strong>the</strong>ses. Although evidentiary questions are beyond <strong>the</strong><br />

scope of this Report, we note that <strong>the</strong> discussion of expert testimony in<br />

Daubert was limited to scientific . . . knowledge and not technical, or<br />

o<strong>the</strong>r specialized knowledge. 113 S. Ct. at 2795 & n.8. Much of Williams'<br />

testimony could be viewed as based on technical or o<strong>the</strong>r specialized<br />

knowledge within <strong>the</strong> meaning of Daubert.<br />

III. Pre-Trial Issues<br />

Several controversies occurred, and were resolved to Whitehurst's<br />

satisfaction, before <strong>the</strong> trials in <strong>the</strong> World Trade Center case.<br />

A. Specimen Q23<br />

Immediately after <strong>the</strong> Trade Center bombing, <strong>the</strong> chemists in <strong>the</strong> FBI<br />

Laboratory specializing in explosives residue analysis (MAU chemists<br />

Whitehurst and Burmeister), went to New York City to conduct<br />

examinations at <strong>the</strong> blast scene. That left no chemists specializing in<br />

explosives residue analysis at <strong>the</strong> laboratory in Washington. When<br />

specimens were sent back to <strong>the</strong> laboratory for examination, <strong>the</strong><br />

examinations were conducted by chemists in <strong>the</strong> CTU, Unit Chief Roger<br />

Martz and Lynn Lasswell.<br />

Specimen Q23 was a tire fragment recovered from <strong>the</strong> crime scene.<br />

Lasswell analyzed it with solid probe mass spectrometry and concluded<br />

that urea nitrate was detected on <strong>the</strong> specimen. Martz as unit chief<br />

approved Lasswell's conclusion, which was incorporated in an official<br />

report and distributed April 12, 1993. This conclusion would have been<br />

extremely helpful to <strong>the</strong> prosecution because it would have tended to<br />

establish that urea nitrate was used in <strong>the</strong> Trade Center bomb.<br />

Whitehurst and Burmeister disagreed with Lasswell's conclusion on <strong>the</strong><br />

ground that <strong>the</strong> instrumental results only really showed <strong>the</strong> presence of<br />

urea and nitric acid, which could have originated from substances o<strong>the</strong>r<br />

than urea nitrate--e.g., urine, fertilizer, car exhausts, or ice melter.<br />

Whitehurst's and Burmeister's objections, however, were overruled.

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