The prosecution's case against Hess was presented by Mervyn Griffith-Jones beginning on 7 February 1946. By quoting from Hess's speeches, he attempted to demonstrate that Hess had been aware of and agreed with Hitler's plans to conduct a war of aggression in violation of international law. He declared that as Hess had signed important governmental decrees, including the decree requiring mandatory military service, the Nuremberg racial laws, and a decree incorporating the conquered Polish territories into the Reich, he must share responsibility for the acts of the regime. He pointed out that the timing of Hess's trip to Scotland, only six weeks before the German invasion of the Soviet Union, could only be viewed as an attempt by Hess to keep the British out of the war. Hess resumed showing symptoms of amnesia at the end of February, partway through the prosecution's case.