To successfully prosecute Evil Dave, follow these steps before entering the courtroom: * Read through the three case reports. There are no fingerprints. * Interview Oziach, located in Edgeville. Go through all the chat options. Note: Oziach's chat options will not be available if you're holding an Anti-dragon shield. Drop or bank the shield and talk to him again to continue the case. * Interview Doris (Dave's mum), located in Edgeville. Go through all the chat options. * Interview Evil Dave, located in the courthouse. Go through all the chat options.