o
burden of proof is divided into:
■
burden of production
→
on the defendant
must show "some evidence"
■
burden of persuasion
→
prosecution must prove the negative of the
affirmative defense (on rebuttal)
standard = beyond a reasonable doubt
"burden shifting"
→
an important constitutional principle
o
Mullaney v. Wilbur
(1975)
■
where an affirmative defense is included within
the statutory language of the offense, it is
unconstitutional to shift the burden to the
defendant
context: the defense of "heat of passion
on sudden provocation" was
contemplated by the statutory language
o
Patterson v. New York
(1977)
■
where an affirmative defense is not an element
of the offense charged, it is permissible to shift
the burden to the defendant
context: malice aforethought was not an
element of second-degree murder
Justifications
rationale: although we generally don't want people to commit this offense, society
would condone defendant's conduct under these particular circumstances
o
justification extends to accomplices
Self-Defense:
there is an actual or
apparent threat;
the threat is unlawful;
the threat is immediate;
the defendant must believe that:
o
they are in imminent peril of death or
serious bodily harm; and
o
force was the only way to prevent the death or
serious bodily harm
potential negative defenses to this affirmative defense:
precipitation/provocation exception
o
prevents an aggressor from being able to avail themselves of the defense
o
negates the last element of self-defense
duty to withdraw/retreat
o
arises only where there is an opportunity to retreat safely
o
negates the last element of self-defense
o
counterargument
→
the castle doctrine
■
there is no duty to retreat in one's own home
United States v. Peterson
- windshield
wiper case court did not reach the issue of the castle doctrine
because the defendant was the aggressor, and therefore self-
defense was not proven
evaluating self-defense: objective vs. subjective perspective
courts must apply the objective standard:
o
defendant's belief must be objectively reasonable
People v. Goetz
- subway
vigilante statute governing the use of force in self-defense
required the defendant to
"reasonably believe" that (1) the threat was imminent; and (2) use of force was necessary