A public inquiry into the infected blood scandal has heard that the government was right to say there was "no conclusive proof" that Aids could be transmitted by blood products in 1983.
According to Lord Clarke, the phrase was entirely accurate at the time it was said. However, evidence in documents reveal senior health officials believed HIV could be carried through blood.
"Somebody, somewhere, decided that that was the best most accurate line to take. It was repeatedly used by every minister. We kept repeating that because that was the scientific advice we had until it was perfectl