Controversy erupted before the fight when Mosley's trainer, Naazim Richardson, observed that Margarito had a pasty white substance in his handwraps. One doctor described this material as plaster hidden in the wrapped hands of Margarito, leading to accusations that he may have been trying to cheat. At Richardson's insistence, California State Inspector Dean Lohuis called for Margarito's hands to be rewrapped. According to Judd Burstein, the attorney for Mosley, Margarito had wet pads in the wrapping. Mosley's doctor, Robert Olvera, likened the material to the type of plaster used to make casts. Burstein said he seized the pad removed from the wrapping and another pad found in Margarito's dressing room. Both were placed in a sealed box that was given to Lohuis for further study. The California Department of Justice laboratory later confirmed the substance to be similar in nature to plaster of Paris.