Core Principals Flashcards
What three elements must there be for criminal liability to attach?
- actus reus
- mens rea
- absence of a valid defence
What is the actus reus?
The acts of the defendant that are prohibited by law
What actus reus is required for conduct offences?
The offences will require certain acts to have been committed by the defendant
What actus reus is required for result offences?
Act of defendant must lead to a specified consequence
What actus reus is required for surrounding circumstances?
The actus reus will include the need for some particular circumstances
What actus reus is required for omission offences?
Rather than an act, defendant must have failed to take or do a certain action
Causation is relevant for proving what part of the offence?
The actus reus
What is factual causation?
Jury must be satisfied that the acts or omissions of the accused were in fact the cause of the relevant circumstances
What is legal causation?
Must be established that the acts or omissions of the accused were a legal cause of that consequence
What is the test for factual causation?
‘But for’ the acts or omissions of the accused, would the relevant consequence occurred in the way it did?
What is necessary for legal causation to be satisfied?
Defendant’s act is the operating and substantial cause of the prohibited consequence
For legal causation, what guidance is there for determining where the defendant’s act is the operating and substantial cause of the prohibited consequence?
- substantial means more than de minimis/minimal
- consequence must be caused by the defendant’s culpable act
- defendant’s act need not be the only cause of the prohibited consequence
What is a novus actus interveniens?
Subsequent event or act of either the victim or a third party which renders the defendant’s part in the consequence very small, breaking the chain of causation and meaning that the defendant is not criminally liable
When will medical negligence be deemed to be a novus actus interveniens?
Very rarely
When it is so severe, so independent of D’s acts, and so potent in causing death, that D’s act are insignificant
What three categories of acts of third parties may be deemed to be a novus actus interveniens?
- fright and flight cases
- refusing medical treatment
- suicide
When will ‘fright and flight’ by victims be deemed to be a novus actus interveniens?
Question whether act by victim was reasonably foreseeable in the circumstances?
If not, then will break chain of causation.
When will an act of a victim not be reasonably foreseeable so break the chain of causation?
Where it is so daft that no reasonable person could have foreseen it
When will refusal of medical treatment by victims be deemed to be a novus actus interveniens?
Very very rarely
Defendant’s must take their victims as they find them, body and soul.
Refusal of medical treatment even if severely detrimental will not break the chain of causation
When will suicide by victims not be deemed to be a novus actus interveniens?
- when they nonetheless die from the original wound
- the act was reasonably foreseeable
- D’s unlawful act was a significant and operating cause of death and at the time of the attach it was reasonably foreseeable that the victim would die by suicide as a result of injuries
When will suicide by victims be deemed to be a novus actus interveniens?
- the injuries inflicted by D have healed, but the victim goes on to die by suicide
- it was a voluntary and informed decision of the victim to act