 Colyvan and Regan (2007) argue that the reference class problem is a form of model uncertainty. For them, the reference class problem stems from uncertainty about the particular statistical model that should be employed. Model uncertainty is evident in the Shonubi case as alternative models were discussed. The first model consisted in multiplying the amount which Shonubi was found carrying when he was arrested by the number of trips he made between the Nigeria and New York. Admittedly, this model was too simplistic. The expert witness for the prosecution, Dr. Boyum, developed a second model. It was based on the DEA data and consisted in the simulation of 100,000 possible series of seven trips by re-sampling sets of seven net weights from the 117 known cases.