The notion of collective culpability seems to deny individual moral responsibility. Consequently, affirmative defenses limit or excuse a defendant's criminal culpability or civil liability. A similar view is that individual moral culpability lies in individual character. Only punishments "properly speaking" are subject to constraints of proportionality between culpability and sanction. Under Italian law, collisions resulting in a fatality must be investigated for any criminal culpability. She was acquitted of culpability in his death. A short summary trial follows, confirming Carlos's putative culpability. However the letter was clearly altered to minimize Wilkinson's culpability. The ego creates an enemy in order to insulate itself from culpability. "What was the Gunpowder Plot?", alleging Salisbury's culpability. All are commonly held to be necessary, but not sufficient, conditions for culpability. These were the only cases where there was previously claimed proof of de Berk's culpability. These polygraph results had convinced some FBI agents of Rowe's culpability in the bombing. Evidentials can also be used to "deflect culpability" in a statement. Questions continue as to the degree of Ellison's culpability in the mutiny.