General Elements of Liability and the Elements of a Crime: Causation Flashcards
In order to establish causation, what three things are required of the defendant’s conduct?
It must be:
- The factual cause of the consequence
- The legal cause of the consequence
- There must be no intervening act which breaks the chain of causation
What are the two tests for proving factual causation?
- the ‘but for’ test
- the de minimis rule
What case established the ‘but for’ test?
- White (1910)
What happened in Dalloway (1847)?
- Defendant held not liable for running a child over with his cart as he would not have been able to stop the cart in time, even if he had been holding the reins
What was the ruling in Paggett (1983)?
- Man convicted of manslaughter as the use of his 16 year old pregnant girlfriend as a human shield is what killed her (shot by police)
What is the de minimis rule?
- The defendant’s actions must be more than just a minimal cause of the death but need not be substantial
Name a case that illustrates the de minimis rule. How else was the rule referred to in this case?
- Kimsey (1996)
- There needs to be “more than a slight or trifling link”
Legal causation can be proved by any of which three requirements?
- that the original act was an operative and substantial cause of the consequence
- that the intervening act was reasonably foreseeable
- the thin skull test
Name two cases that illustrate the fact that medical treatment rarely breaks the chain of causation
- Smith (1959)
- Cheshire (1993)
Name a case where medical treatment was seen to have broken the chain of causation. What happened?
- Jordan (1956)
- Original wounds were nearly healed and the victim was given ‘palpably wrong’ treatment, so the defendant was not liable
What is the key difference between Cheshire (1993) and Smith (1959), and Jordan (1956)
- In the first two the doctors were trying to save the victims’ lives. In Jordan, the injuries had virtually healed
Which case showed that switching off a life support machine will not break the chain of causation?
- Malcherek (1981)
What is the Latin term for an intervening act?
- Novus Actus Interveniens
What can intervening acts be? (3)
- An act of a third party
- The victim’s own act
- A natural and unpredictable event
What was decided in Pagett (1983) in terms of foreseeability?
- the action of police returning fire was foreseeable (the whole pregnant 16 year old human shield thing)
What do the victim’s own acts have to be in order to not break the chain of causation?
- Reasonably foreseeable
What was decided in Roberts (1971)? What happened?
- Escaping does not break the chain of causation, unless it is ‘daft’ in the eyes of the jury
- Man found guilty of ABH as the victim jumped out of his car to escape
Name three cases where the victim’s act did not break the chain of causation
- Roberts (1971)
- Marjoram (2000)
- William (1992)
What happened in Marjoram (2000)?
- Defendant forced their way into a girl’s room
- She either jumped or fell out of the window, sustaining life-threatening injuries
- Defendant convicted of GBH
What happened in William (1992)?
- Hitchhiker died after jumping out of the defendants’ moving car (they were trying to rob him)
- Defendants convicted of constructive manslaughter
What is the thin skull test? E.g?
- The defendant must take the victim as they find them
- If the defendant hits the victim over the head with a blow that would usually cause no real harm, but the victim has an unusually thin skull and dies, then the defendant is liable
Name a case that illustrates the use of the thin skull test
- Blaue (1975)
What happened in Blaue (1975)?
- Incel stabbed a woman four times after she refused to have sex with him
- She was a Jehovah’s witness and so refused a blood transfusion that would have saved her
- Defendant convicted of manslaughter - she died because he stabbed her, not because she was a Jehovah’s witness
What are the three problems with causation?
- The “more than a slight or trifling link” referred to in Kimsey (1996) is very vague
- If the victim refuses treatment that would save them, should the defendant be held liable?
- The thin skull test means that the defendant can be convicted of murder with no intent to kill