Core Principles Flashcards
(83 cards)
What are the key elements of criminal liability?
Actus reus + mens rea + absence of valid defence
What is the legal burden of proof and who is it on?
Prosection to prove all elements of the offence (including, in most cases, disproving a defence)
What is the evidential burden and who must discharge it?
P to prove sufficient evidence for each element (but can switch to D for certain defences)
eg: diminished responsibility
What is the standard of proof?
Beyond reasonable doubt
When the burden to raise a defense falls on D, what is the standard of proof?
Balance of probabilities (>50%)
What is the actus reus?
The guilty act/omission
What are the 4 types of AR?
- Conduct - offences only require certain acts to be committed – conduct itself is criminalised, result irrelevant (eg: perjury)
- Result - action must lead to specified consequence (eg: murder)
- Circumstances - need for particular surrounding circumstances (eg: drunk driving or property belonging to another)
- Omissions - some exceptions
What is the difference between factual and legal causation?
- Factual = acts/omissions of accused were the cause of the consequence suffered by D
- Legal = acts/ommissions of accused were a legal cause of that consequence
How is factual causation proved?
The but for test
What happens if you peform an act (e.g. poisoning) but they die of something else (e.g. heart failure)?
- No factual causation; no causal link between action and consequence
- But accelerating death can be a cause e.g. throwing child with meningitis down the stairs
How is legal causation proved?
Substantial and operating cause of the consequence
Must the consequence be attributable to a culpable act/omission?
Yes –R v Dolloway [D driving horse and cart without holding reins, child ran in front and killed. However, even though act was culpable, it did not cause child’s death (as it couldn’t be avoided)]
Fill in the blank: The culpable act must be _ _ _ cause of the consequence
More than minimal cause of the consequence
Ie: more than trivial or minimal
R v Pagett – D held girlfriend in front of him as a human shield when police fired at him. Action ‘contributed significantly’ to her death.
Does D’s act need to be the only cause of the prohibited consequence?
No
E.g. woman pulls gun on a man who runs into road and is hit by a van and dies = woman can still be a substantial cause even though not just her
How must you take your victim?
As you find them –thin skull rule (eg: Jehovah’s witnesses)
What is a novus actus interveniens?
A subsequent event/act of either the victim or TP which breaks the chain of causation = D not criminally liable
What are the 3 ways in which the chain of causation may be broken?
- Where the victim acts in a particular way
- Where a TP intervenes
- Where some event occurs
Can medical negligence break the chain of causation?
Very unlikely - unless negligent treatment was so independent of his acts and in itself so potent in causing death
R v Jordan –V’s injuries mainly healed – medical treatment was ‘palpably wrong’ and D’s liability was transferred to the medical professional
What if medical treatment was the immediate cause of death?
No – treatment must be so overwhelming as to make the original wound merely part of history – only then can it be said that death does not follow from the original wound
What if V is dropped twice on their way to the hospital and was given inadequate treatment?
Not necessarily –if original injury is still an operating and substantial cause of death
Will acts of third parties break the chain of causation?
D no longer liable if TP’s intervening act is either:
1. Free, deliberate and informed; or
2. Is not reasonably foreseeable
E.g. Pagett - D shot at police first, used pregnant girlfriend as shield who was shot by police and died. Officer’s response was not voluntary (was acting in self defence) and not reasonable foreseeable (D was shooting at officer) –> police absolved of criminal liability
What is the rule for victim’s breaking the COC?
- If they do something after the initial act but before the consequence occurs; and
- That intervention is free, deliberate and informed (ie: voluntary)
Will the victim break the chain of causation in ‘fright and flight’ cases?
Where under attack from D and V tries to escape
Only if victim’s act was so ‘daft’ that no reasonable person could have foreseen it; must beproportionality between gravity of threat and action in seeking to escape from it - but consider particular characteristic of the victim and that in agony of moment he may have acted without thought
ie: Court will consider how foreseeable V’s response was
I.e. victim can do wrong/stupid thing and still not break chain
Eg: A puts B under duress to pay 10 extra taxi fee. B decides to jump out of the moving vehicle and suffers head injuries. Response is not reasonably forseeable