Albert Hofmann was the chemist that created the powerful drug LSD. His motives were altruistic, but when the US and British governments got ahold of the stuff they started testing it on their own people. Of course it was for their own ends, like the US wanting to find out if it was useful for warfare. The British wanted to know if it was truth serum.
This testing yielded nothing useful, but it did maim, or otherwise ruin the lives of thousands of good Soldiers, and was done without the test "subjects" consent.
Other drugs were also tested on Soldiers, like the drug BZ for example. Remember this next time you suggest that the government would never do anything to hurt the people.