"[P]erhaps the most pernicious innovation was to shut down crucial legal defences. One attorney general removed the defence of proportionality; another removed the defence of lawful excuse. This means that environmental activists can no longer explain their motives to a jury. They have to be tried as though they were mindless vandals, inconveniencing people for kicks, rather than seeking to prevent, at great cost to themselves, the greatest crisis humankind has ever faced. Some protesters have sought to explain themselves regardless, and have as a result been imprisoned for contempt of court."