Corrected entry: During Rimmer's appeal against his 9,000 year sentence for second degree murder, Kryten's entire defence strategy is proving that Rimmer is "a jumped-up grease monkey" who would never be trusted with critically important repairs on the Red Dwarf - that is, the drive plate. The court accepts this and Rimmer is released. The trouble is, Rimmer WAS trusted with the drive plate repairs and he WAS responsible for the crew's death. Kryten's defence is wrong, and on the court's terms the charge is correct and Rimmer is guilty. It's not as if Rimmer and Kryten believe Rimmer is too dumb to be guilty - they know the facts of the case and they are under 'polygraphic surveillance'. Their opinions don't count, the facts stand, and Rimmer is doomed.