General Defences Flashcards
What is intoxication in legal terms?
Intoxication is a general defence available for almost any crime, used to negate the mens rea of an offence or as an influencing factor on another legal principle/defence.
How does intoxication negate mens rea?
The principle of intoxication allows the defendant to show they did not form the necessary mens rea for the offence due to intoxication.
What is the leading case on the burden of proof regarding mens rea?
Woolmington [1935] AC 462 established that the prosecution must prove, beyond reasonable doubt, that the defendant committed the actus reus with the necessary mens rea.
What must be proven for a full acquittal based on intoxication?
If the defendant did not form the necessary mens rea due to intoxication, they may be entitled to a full acquittal.
What does R v Bennett [1995] Crim LR 877 establish about jury direction?
The judge must direct the jury on intoxication if there is evidence that a reasonable jury might conclude the accused did not form the mens rea.
What does R v Pordage [1975] Crim LR 575 clarify about mens rea?
The question is not whether the defendant was incapable of forming mens rea, but whether they did form it despite their intoxication.
When can intoxication operate to negate mens rea?
Intoxication can negate mens rea in cases of involuntary intoxication, voluntary intoxication for medical treatment, non-dangerous drugs, and specific intent crimes.
What are the three questions to consider regarding intoxication and mens rea?
- Is the defendant voluntarily or involuntarily intoxicated? 2. Is the intoxicant dangerous or non-dangerous? 3. Is it a crime of basic intent or specific intent?
What is involuntary intoxication?
Involuntary intoxication occurs when a defendant is forced or deceived into consuming intoxicating substances, potentially allowing a defence for any offence.
What does R v Allen [1988] Crim LR 698 state about mistaken strength of alcohol?
If the defendant is aware they are drinking alcohol but mistaken about its strength, it does not count as involuntary intoxication.
What is the significance of DPP v Majewski [1977] AC 443?
This case established that voluntary intoxication can be a defence for specific intent crimes but not for basic intent crimes.
What are basic intent offences?
Basic intent offences are those where recklessness suffices for mens rea, such as battery, unlawful act manslaughter, and assault.
What are specific intent offences?
Specific intent offences require intention as the only form of mens rea, such as murder, theft, and robbery.
How does R v Hardie [1985] 1 WLR 64 classify drugs?
Drugs are classified as dangerous if they are known to cause aggressive or unpredictable behavior, while non-dangerous drugs do not have this common knowledge.
What is the court’s stance on intoxication and consent?
In R v Richardson and Irwin [1999] 1 Cr App R 392, the court allowed consideration of whether the victim consented to injury, even if the defendants were intoxicated.
How does intoxication affect self-defence?
A defendant cannot rely on a drunken mistake regarding the need to use self-defence.
What is the relationship between intoxication and diminished responsibility?
Voluntary intoxication alone cannot establish diminished responsibility; an abnormality of mental functioning must also be present.
What must be shown for diminished responsibility related to alcohol dependency syndrome?
The defendant must have an abnormality of mental functioning due to alcohol dependency syndrome that substantially impaired their ability to understand their conduct.
What is the summary of intoxication as a defence?
Intoxication can negate mens rea if the defendant did not form it due to involuntary intoxication or voluntary intoxication by non-dangerous drugs or specific intent crimes.
What is the risk of damaging property when intoxicated?
D will not be criminally liable if the damage was caused by an accident, such as tripping over a broken step.
Example: If D smashed the window by tripping over a broken step that they would have tripped on if sober.
Can a defendant rely on self-defence if intoxicated?
D cannot rely on a drunken mistake regarding the need to use self-defence.
Can intoxication affect loss of control and diminished responsibility?
Yes, intoxication can impact various aspects of the legal analysis for these defences.
What is the role of consent in criminal liability?
The victim’s consent can sometimes prevent a defendant from being liable for a crime, such as in property offences.
What are the elements of consent?
- The victim consented, or the defendant believed the victim consented.
- The offence is one which a victim can consent to.
Who has the burden of proof regarding consent?
It is for the prosecution to prove that the victim did not consent and that the defendant did not believe in the victim’s consent.
When is consent a defence to an offence against the person?
Consent is generally only available as a defence to assault and battery.
What did AG’s Reference (No 6 of 1980) establish?
It held that it is not in the public interest for people to cause each other actual bodily harm for no good reason.
When can consent be a defence even if actual bodily harm is caused?
Consent is available if D intended only to commit a battery with the victim’s consent and did not see the risk of inflicting actual bodily harm.