Again because the caseload was impossibly large, the German tribunals began to look for ways to speed up the process. Unless their crimes were serious, members of the Nazi Party born after 1919 were exempted on the grounds that they had been brainwashed. Disabled veterans were also exempted. To avoid the necessity of a slow trial in open court, which was required for those belonging to the most serious categories, more than 90% of cases were judged not to belong to the serious categories and therefore were dealt with more quickly. More "efficiencies" followed. The tribunals accepted statements from other people regarding the accused's involvement in Nazism. These statements earned the nickname of "Persilscheine", after advertisements for the laundry and whitening detergent Persil. There was corruption in the system, with Nazis buying and selling denazification certificates on the black market. Nazis who were found guilty were often punished with fines assessed in Reichsmarks, which had become nearly worthless. In Bavaria the Denazification Minister, Anton Pfeiffer, bridled under the "victor's justice", and presided over a system that reinstated 75% of officials the Americans had dismissed and reclassified 60% of senior Nazis. The denazification process lost a great deal of credibility, and there was often local hostility against Germans who helped administer the tribunals.