In the early days of the Trace, several believed they could get around the restrictions by using unregistered wands. Those few powerful and disciplined enough tried to accomplish wandless magic. Azkaban's cells quickly began to overflow with the perpetrators. In hindsight, even the Dark Lord seemed to believe that maybe throwing a large portion of the population to the dementors hadn't been the greatest of ideas. The ones that emerged from the notorious prison with their wits intact became some of the most fanatic and dangerous members of the Resistance. Even after all of its time in power, the regime was still making mistakes.