He became known for gluing activistic posters in the streets of Oslo , particularly in December 1938 , when his actions was probably inspired by the Kristallnacht . Amble was arrested and tried for these anti-Semitic posters . He fled Norway for Germany after being released from detention , then returned in the autumn of 1939 , and was acquitted . As a part of the trial Amble was assessed by forensic psychiatrist Gabriel Langfeldt , who among other things diagnosed Amble with " enduringly weakened mental faculties " . Langfeldt ( and Ørnulv Ødegård ) would later , famously , apply the same diagnosis to the worldwide known author Knut Hamsun . Amble 's defender was Albert Wiesener
Kristallnacht
Kristallnacht
Alf Amble