In Iowa under §708.2 an assault (which is not distinct from battery in Iowa)
with the intent to inflict a serious injury upon another§708.2(1)
is an aggravated misdemeanor, which is punishable for up to two years in jail with a fine of $625-6,250§903.1(2).
An assault which
causes bodily injury or mental illness§708.2(2)
is a serious misdemeanor, which is punishable for up to one year jail with a fine of $315-1,875§903.1(1).
But if one commits assault
without the intent to inflict serious injury, but who causes serious injury§708.2(4)
they are guilty of a class "D" felony, which is punishable for up to five years in jail with a fine of $750-7,500§902.9(1)(e).
This is in contrast to homicides where less intent generally results in a lesser sentence. For instance murder in the first degree is committed by
willfully, deliberately, and with premeditation kills another person§707.2(1)(a)
which is a class "A" felony, which is punishable only by a mandatory life sentence, without the possibility of parole or probation§902.1(1).
Second degree murder is committed when someone still has malice aforethought, but doesn't meet the requirements of first degree murder. This is a class "B" felony which is punishable with up to 50 years in jail§707.3.
Voluntary manslaughter is committed when a
person causes the death of another person, under circumstances which would otherwise be murder, if the person causing the death acts solely as the result of sudden, violent, and irresistible passion resulting from serious provocation sufficient to excite such passion in a person and there is not an interval between the provocation and the killing in which a person of ordinary reason and temperament would regain control and suppress the impulse to kill§707.4(1).
which is a class "C" felony, which is punishable up to 10 years in jail, with a fine of $1,000-$10,000§902.9(1)(d).
Involuntary manslaughter which
unintentionally causes the death of another person by the commission of a public offense other than a forcible felony or escape§707.5(1)(a).
is a class "D" felony, while involuntary manslaughter which
unintentionally causes the death of another person by the commission of an act in a manner likely to cause death or serious injury§707.5(1)(b).
is an aggravated misdemeanor.
So why is it that lacking intent to inflict serious injury, but causing serious injury nonetheless has a harsher punishment than inflicting serious injury with outright intent?