Generally negligence is not part of the mens rea of a crime. This is because the law punishes only those who intend to commit a crime. If you are negligent, by definition you didn't intend the the consequence, even though you might have fallen short of a standard. Excluding negligent driving, there are only 2 exceptions to this that I know of:
manslaughter by criminal negligence (a crime defined in common law), and
causing grevious bodily harm (s54 Crimes Act)
The meaning of negligence is not the same one as you might be used to e.g. the breach of a duty of care in a civil tortious context. It is a "great falling short" that would merit attracting criminal liability -- the authority for this is Nydam (1977). It has also been described as "wicked" or "culpable".