Between June and December 1944, Carl Værnet experimented on 17 male inmates at Buchenwald who were forced to undergo an operation with an artificial gland. Although none of the inmates died as a direct result of his research, at least two contracted infections which proved fatal. There is no evidence that any of the inmates were castrated. His research proved inconclusive and he quickly lost favour with his Nazi paymasters. After the war, he was arrested in Copenhagen and interrogated at Alsgades School. Although the Danish authorities wanted to press charges of his SS involvement, he feigned heart trouble and escaped. It appears he tried to sell the hormone research to DuPont in 1946. He later fled to Brazil and then Buenos Aires, Argentina, where he died in 1965.