State v. Thornton, 2014 UT App 265, 339 P.3d 112 (Nov. 14, 2014) 

The trial court failed to conduct a scrupulous examination of the evidence that 404(b) analysis requires. The trial court erroneously “took two separate categories of bad acts – drug dealing and encouragement of prostitution – and analyzed them as a single unit,” potentially preventing the jury from accounting for marked differences between the acts that lead to improper inferences.