First, a special office inside Hitler’s own Chancellery was set up to run the ‘euthanasia’ programme, code-named T4 after the address of the office itself, situated at Berlin’s Tiergartenstrasse 4. Killing centres were set up inside existing hospitals and sanatoria – five in Germany, one in annexed Austria – and a ‘commission’ of doctors, all sworn to secrecy, would diagnose the incurably ill and the insane.
