In criminal law, culpability, or being culpable, is a measure of the degree to which an agent, such as a person, can be held morally or legally responsible for action and inaction. It has been noted that the word, culpability, "ordinarily has normative force, for in nonlegal English, a person is culpable only if he is justly to blame for his conduct". Culpability therefore marks the dividing line between moral evil, like murder, for which someone may be held legally responsible, and a randomly occurring event, like naturally occurring earthquakes or naturally arriving meteorites, for which no human can be held responsible.