To determine criminal liability, what three conditions must be met?
There must be a guilty act (actus reus), a guilty mind (mens rea), and the absence of a valid defence.
What is the general rule regarding liability for an omission to act in English criminal law?
There is no general liability for a failure to act, even if there is no risk to the person; this is often expressed as ‘no duty of easy rescue’.
In the context of omissions, what is the ‘special relationship’ exception?
A duty to act is imposed where a special relationship exists, such as between a parent and child.
What legal principle was established in R v Gibbins and Proctor regarding omissions?
A parent (Gibbins) has a duty of care arising from a special relationship, and a person who lives with and is supported by the parent (Proctor) can have a duty from a voluntary assumption of care.
What principle regarding the voluntary assumption of care was established in R v Stone and Dobinson?
A duty of care can be assumed for a helpless or infirm person, and a failure to provide that care adequately can lead to criminal liability for manslaughter.
Under what circumstances can a contractual duty create an exception to the rule of no liability for omissions?
If a contract includes a duty to act, a failure to perform that duty can be a criminal offence, as established in R v Pittwood.
What is the ‘Miller principle’ concerning omissions?
A person who creates a dangerous situation and becomes aware of it has a duty to take reasonable steps to avert that danger.
For an act to constitute the actus reus of a crime, what fundamental quality must it possess, as discussed in Hill v Baxter?
The act must be voluntary; involuntary acts performed due to factors like a muscle spasm or being attacked by bees do not satisfy the actus reus.
What is the ‘but for’ test used to establish in causation?
It is the test for factual causation, asking: ‘But for the defendant’s conduct, would the consequence have occurred?’
In R v White, why was the defendant not guilty of murder despite poisoning his mother’s drink?
He was not the factual cause of death; medical evidence showed she died of a heart attack unrelated to the poison, so the ‘but for’ test failed.
To establish legal causation, the defendant’s culpable act must be a _____ and _____ cause of the result.
substantial; operating
What is the ‘thin skull’ rule in legal causation, as exemplified in R v Blaue?
The defendant must take their victim as they find them, including any pre-existing physical vulnerabilities or religious beliefs that may worsen the outcome.
What is a novus actus interveniens?
A new intervening act that is so independent of the defendant’s conduct that it breaks the chain of causation.
In ‘fright and flight’ cases like R v Roberts, what is the test to determine if the victim’s escape breaks the chain of causation?
The chain is not broken if the victim’s reaction was a reasonably foreseeable consequence of the defendant’s actions and not ‘so daft’ as to be voluntary.
According to R v Pagett, will an involuntary act by a third party, such as police acting in self-defence, break the chain of causation?
No, a third party’s involuntary or reasonably foreseeable act in response to the defendant’s conduct will not break the chain of causation.
In R v Cheshire, what was the ruling on when negligent medical treatment breaks the chain of causation?
It will only break the chain if the treatment was so independent of the defendant’s acts and so potent in causing death that the defendant’s contribution is rendered insignificant.
What is the key difference between direct intention and oblique (indirect) intention?
Direct intention is the defendant’s aim or purpose, whereas oblique intention concerns a result that is a virtually certain consequence of their actions, even if not desired.
What is the current test for oblique intention as established in R v Woollin?
The jury is not entitled to find intention unless the result was a virtual certainty of the defendant’s actions and the defendant appreciated that this was the case.
According to section 8 of the Criminal Justice Act 1967, what must a jury do when determining if a defendant intended or foresaw a result?
The jury must decide by reference to all the evidence, and is not bound in law to infer intent simply because a result was a natural and probable consequence.
What is the subjective test for recklessness, also known as Cunningham recklessness?
The defendant foresaw a risk of the harm occurring and went on to take that unreasonable risk.
Which House of Lords case overruled the objective test for recklessness from Caldwell and reinstated a subjective test for criminal damage?
R v G and another (2003).
What is the principle of ‘coincidence of actus reus and mens rea’?
For a conviction, the guilty act (actus reus) and the guilty mind (mens rea) must exist at the same time.
How did the court in Fagan v Metropolitan Police Commissioner establish coincidence when the defendant accidentally drove onto an officer’s foot but then intentionally refused to move?
It used the ‘continuing act’ theory, viewing the entire incident as a single ongoing act, during which the mens rea was formed.
What is the ‘single transaction’ principle established in Thabo Meli v R?
A series of acts can be treated as one transaction, and if the mens rea exists at any point during that transaction, coincidence is established.