I can't stop think about that thread about the killing of Natalie Connolly. Her blood alcohol level was in the "coma/death" bracket and the expert witness said he had never seen such high levels of alcohol and cocaine together. Even her killer admitted she was talking gobblegook and crashing into things and falling, unable to save herself from injury. Basically completely helpless. But the judge said he couldn't be sure that she didn't consent to the beating and violent sex that contributed to her death.
So how drunk do you have to be to be considered incapable of consent beyond reasonable doubt? If you're falling down, hitting-your-head drunk, incapable of coherent speech and not far off lapsing into coma and death but its considered that there is a reasonable possibility that you consented (to any sex let alone extremely violent penetration with an object and a battering) then how drunk is too drunk to consent? How far down the Glasgow coma scale do you have to be? Actually dead?