Robert Blasier was a defense attorney in the criminal and civil trials whose work focused substantially on DNA, blood, trace evidence, and evidence-handling issues. During his cross-examination of LAPD criminalist Gregory Matheson, Blasier questioned laboratory accreditation, written procedures, evidence tracking, contamination controls, and reference-blood accounting. Matheson agreed that, if the vial began with the eight milliliters assumed in Blasier's hypothetical, approximately 1.5 milliliters was not accounted for by the records as of June 20. Blasier also challenged FBI chemist Roger Martz's EDTA testing methods, records, and conclusions, and delivered part of the defense's civil closing argument about the physical and DNA evidence, LAPD procedures, and witness accounts concerning a missing blood vial.