Behind every great fortune there is a crime.
Honore de Balzac
the intention or knowledge of wrongdoing that constitutes part of a crime, as opposed to the action or conduct of the accused.
“a mistaken belief in consent meant that the defendant lacked mens rea”
action or conduct which is a constituent element of a crime, as opposed to the mental state of the accused.
“failure to prevent death may be the actus reus of manslaughter”