Burden is on D to
prove it on the
balance of
probabilities
Suicide pact (not
relevant to AQA)
Only apply to a
murder charge.
Partial defences, if
successful, charged
with voluntary
manslaughter
Loss of Control
Must have lost
self-control and this
caused the killing
The loss of self-control
had a qualifying trigger
A person of D's sex and age with a
normal degree of tolerance and
self-restraint would have acted in
a similar way to D in the
circumstances
D must have lost his self control
There must be a loss
of self-control, not
just self-restraint:
COCKER
The loss of control
does not have to
immediately follow
the qualifying trigger
Defence is not
available where D
acted in a 'considered
desire for revenge':
s.54(4)
Loss of self control
must have had a
qualifying trigger: s.55
Fear of violence from V
against D or another
identified person:
WARD
Things done and/or said
which were extremely grave
and caused D to have a
justifiable sense of being
seriously wronged: ZEBEDEE
Certain triggers are
excluded by CJA 2009:
Things done and/or said which
amount to sexual infidelity
cannot be a trigger on their
own: s.55 (6)
Sexual infidelity can be
used to explain the context
of other potential
qualifying triggers:
CLINTON
Situations where D has
encourage fear or violence or
the thing done or said in
order to have an excuse to
use violence: DAWES
A person of D's sex and age,
with a normal degree of
tolerance and self-restraint in
the circumstances of D must
have reacted in the same or a
similar way to D
Circumstances relating to D's
general capacity to exercise
tolerance and self-restraint are to
be disregarded: s.54 (3)
Such as D being drunk:
ASMELASH, depressed,
epileptic or aggressive
by nature
Unemployment, EFFECTS of
discovering sexual infidelity, history
of sexual abuse or a sever alcohol
or drugs problem for which D was
taunted can be taken into account
when deciding if a normal person
would have reacted in the same or
a similar way.
Diminished
Responsibilty
D must have suffered an
abnormality of mental
functioning which
Arose from a
recognised medical
condition
Substantially
impaired D's ability
to:
Understand the
nature of his
conduct
Form rational
judgement
Exercise
self-control
Provides an explanation
fro D's conduct in doing
or being a part to the
killing
D must have suffered an
abnormality of mental
functioning: BYRNE
D's abnormality of mental
functioning must have been
caused by a recognised
medical condition
Severe depression
Paranoia
Delusions
Battered
Woman's
Syndrome (BWS)
Alcohol
Dependency
Syndrome (ADS)
Depends on the
nature and extent
of ADS: STEWART
Covers physical
condition which affects
mental functioning
Epilepsy
Sleep disorder
Diabetes
Must be medical
evidence given at the
trial to prove this
Abnormality of mental
functioning must
impair D's ability
The impairment need not
be total but must be more
than trivial: LLOYD
Abnormality of mental
functioning must
provide an explanation
for the conduct in
killing or being a party
to the killing
Since the CJA 2009 There
must be a causal
connecting between
abnormality of mental
functioning and the killing.
Need not be the
only factor, but a
significant factor in
the conduct.
Voluntary intoxication is
not capable of
establishing the defence
alone: DOWDS/
DIETSCHMANN