General Defences Flashcards
Inadvertence and Mistake
There may be times when a defendant makes a mistake about some circumstances or consequence; this is only a defence if they negate the mens rea required for that offence.
Inadvertance or Mistake: DPP v Morgan
It does not matter if a mistake was reasonable. Mistakes a judged subjectively, usually an appropriate test is whether the defendant’s mistaken belief was an honest and genuine one.
Inadvertence or Mistake: R v Brightling
A genuine or honest mistake could provide a defence to many criminal offences requiring a particular state of mind.
Inadvertence and Mistake: R v Bentley
A defence of mistake has to involve a mistake of fact not the law. People under arrest are not entitled to form their own view as to the lawfulness of that arrest. They have a duty to comply with the police and hear the details of the charges against them. Belief in one’s innocence, however genuine or honestly held, cannot afford a defence to a charge of assault with intent to resist arrest.
Inadvertence and Mistake: S.2 Theft Act 1968
Exception where a mistaken belief in the legal position can be a defence: a person appropriates property in the belief that they have a legal right to deprive another person of it.
Duress: R v Graham
Where a person is threatened with death or serious injury (including threats to loved ones) unless they carry out a criminal act, the person may have a defence of duress.
Duress: R v Baker
The threat of serious physical injury does not include psychological injury.
Duress: R v Fisher
Offences requiring intent: unless it is shown that the intent had or could have been formed only by reason of that duress the defence will fail.
Duress: R v Howe
Duress is not a defence for murder.
Duress: R v Gotts
Duress is not a defence for attempted murder.
Duress: Eden District Council v Braid
Duress is available as a defence for strict liability offences. For example a taxi driver was threatened into carrying excessive passengers which would be a breach of licensing conditions.
Duress: Drink and Drugs
The defendant must be sober and have acted as a reasonable person for duress to stand.
Duress: Future Threats
Threats must be anticipated at or near the time of the offence, not in the distant future, for duress to stand.
Duress: R v Heath.
Duress is not available if the defendant failed to take advantage of opportunities to neutralise the threat, which a reasonable person could have taken in the same position. For example a defendant claim to be pressured into transporting drugs but had the opportunity to go to the police or escape to his parents.
Duress: R v Sharp
If a defendant knowingly exposes themselves to a risk of such threat, they cannot claim duress. For example, if a defendant joins a violent gang, they cannot claim duress as a defence to any crimes they may go on to commit under threat from another gang member or rival member.