C7: Defences Flashcards
What are the four general and complete defences?
Insanity
Self-defence (public and private defence)
Necessity
Duress
What is a general and complete defence?
General = can be pleaded to any crime.
Complete = defendant avoids liability altogether.
What is a justificatory defence?
Where the defendant is seeking to justify their conduct, e.g. self-defence.
What is an excusatory defence?
Where the defendant is arguing that their behaviour should be excused by the fact that they were e.g. acting under duress.
Where is the burden of proof once a defence has been brought forward?
The burden of proof with defences is usually on the prosecution. This means that, where the defendant brings forward enough evidence to put a defence before the court (i.e. they discharge their evidential burden), it is then for the prosecution to disprove the defence beyond reasonable doubt.
What is the exception to the defendant only giving an evidential burden, but having to prove the elements of a defence to the civil standard of proof (on balance of probabilities)?
For diminished responsibility.
What is private defence?
Private defence was a common law defence. It has now been partially codified by s76 Criminal Justice and Immigration Act 2008 (CJIA 2008). It is an umbrella term for two types of defence: self-defence and defence of others.
Where in legislation would you find private defence?
s76 Criminal Justice and Immigration Act 2008 (CJIA 2008)
What are the elements of the private defence?
The elements of the defence are as follows:
- the defendant’s use or threat of force is necessary in order to defend themself or another, or the defendant mistakenly believes that force is necessary in order to defend themself or another; and
- the defendant’s use or threat of force is reasonable in the actual circumstances, or in the circumstances that they mistakenly believe to exist.
Where in legislation would you find public defence?
s3 Criminal Law Act 1967 (CLA 1967).
What do private and public defences apply to?
Offences committed by the defendant that involve the use or threat of force (usually against a person).
What are the elements of the public defence?
The elements of the defence are as follows:
- the defendant’s use or threat of force is necessary to prevent a crime, or to effect or assist lawful arrest, or the defendant mistakenly believes the use or threat of force is necessary to prevent a crime, or to effect or assist lawful arrest; and
- the defendant’s use or threat of force is reasonable in the actual circumstances, or in the circumstances that they mistakenly believe to exist.
What is the difference between public and private defences?
Public: to prevent a crime
Private: to defend themselves or another
Of private and public defences, which defence is a common law defence and which is a statutory defence?
Private: Common law defence (although codified in s76 CJIA 2008)
Public: Statutory in s3 CLA 1967.
Can both private and public defences apply in the same situation, or must there only be one that applies?
Both can apply, or either.
If a nine-year-old child threatens someone with a knife, can a public defence be put forward?
No, because the defendant does not use force to prevent a crime; the child is under the age of criminal responsibility and they therefore cannot commit a crime
If the defendant uses force to prevent a crime where they are not attempting to protect themself or another, e.g. where they wrestle the victim who is about to deface a painting in an art gallery, which public/private defence would apply?
A public defence, to prevent a crime.
Is the test for establishing whether the defendant believed that their use or threat of force was necessary, subjective or objective?
It is subjective - it depends on what the defendant honestly believes. There needs to be no proof that the belief needs to be reasonable.
If the defendant genuinely believed that they had to use force for self-defence, although that was a mistaken belief, can a public/private defence still apply?
Yes, it can. The focus is on whether the defendant honestly believed what the facts were, not what was actually the truth. See s76(4) CJIA 2008: “(4) If D claims to have held a particular belief as regards the existence of any circumstances —
- the reasonableness or otherwise of that belief is relevant to the question whether D genuinely held it; but
- if it is determined that D did genuinely hold it, D is entitled to rely on it for the purposes of subsection (3), whether or not —
— it was mistaken, or
— (if it was mistaken) the mistake was a reasonable one to have made”.
If the defendant honestly believes that the victim is a burglar and honesty believes it is necessary to detain the victim in order to protect his property, has the defendant got a public/private defence?
Yes, they do, because the defendant honesty holds a belief and that provides a defence, however unreasonable this belief may be.
Can the honestly-held belief be unreasonable or will it not allow a public/private defence?
It can be unreasonable, as long as it is honestly held.
Can a defendant rely on a public or private defence when assaulting a police officer?
Yes, they can, even if the court deems the officer to be acting properly and lawfully, as long as the defendant honestly, but mistakenly, believes that the force is necessary.
What kind of force can be used in self-defence of a person or property?
It must be reasonable force - unreasonable force will not provide a defence. See Burns [2010], the defendant invited the victim into his car after she had agreed to give him oral sex for £50. They drove to a quiet place but the defendant changed his mind and asked the victim to leave. She refused. He ejected the victim from his car by pulling her out by the armpits, causing her scratches and grazes. He was convicted of assault occasioning ABH. His defence was that he used lawful force to eject the victim from his property. All the defendant had to do was to drive her back to that spot rather than use unlawful force to eject her. She was not a trespasser.