On German Scientist, Germar Rudolf

The fellow has served 44 months in prison simply for doing an experiment in which the results failed to match the traditional narrative (the fact that the walls/ceilings of the delousing chamber at Auschwitz showed a cyanide concentration level 1,000 times greater than those of the supposed gas chamber). How in the hell is this even remotely just? I mean, I know that the Germans have a lot of self-hatred and all but in a free society you don't imprison folks for thoughts/research and what in the hell was Rudolf supposed to do, hide the results (kind of like the Krakow Institute did when one of their studies substantiated the Leuchter Report)?