 It is tempting to dismiss this challenge by noting that expert witnesses work with multiple reference classes and entertain plausible ranges of values (Nance 2007). In fact, relying on multiple reference classes is customary in the assessment of DNA evidence. In Darling v. State, 808 So. 2d 145 (Fla. 2002), for example, a Polish woman living in Orlando was sexually assaulted and killed. The DNA expert testified about multiple random match probabilities, relying on frequencies about African-Americans, Caucasians and Southeastern Hispanics from the Miami area. Since the perpetrator could have belonged to any of these ethnic groups, the groups considered by the expert were all relevant under different scenarios of what could have happened.