State v. Gary R. Schumacher, 2019AP1261-CR, District 4, 5/7/20, (1-judge opinion, ineligible for publication); case activity (including briefs) Schumacher was convicted of OWI with a prohibited alcohol content in connection with an accident at 8:45 p.m. His blood was drawn at 10:56 p.m., and tests showed a BAC of .171, well above his legal limit of 0.08. The sole issue on appeal was whether Schumacher’s trial counsel had adequately cross-examined Kristin Drewieck, a chemist with the Wisconsin State Laboratory of Hygiene about her estimates of Schumacher’s BAC at 8:45 p.m. Drewieck calculated three different estimates for a 200 pound… Continue Reading Claim for ineffective cross-examination of retrograde extrapolation expert fails