The world had responded to these crimes against humanity by putting all the Nazi doctors and military officers who were responsible for crimes against humanity. These trials were called the "Nuremberg Trials". 23 German doctors responsible for these crimes were put on trial. 15 of the doctors were guilty of war crimes against humanity and seven were sentenced to hang. All of the Nazi doctors argued that there was no law saying they could not experiment on humans.
Sources: http://www.pbs.org/wgbh/nova/holocaust/experiside.html
http://en.wikipedia.org/wiki/Nazi_human_experimentation#Experiments
http://en.wikipedia.org/wiki/Nazi_human_experimentation#Experiments