Core Principles Flashcards
1.1 Key elements of criminal liability
As a matter of analysis we can think of a crime as being made up of three ingredients; actus
reus, mens rea and (a negative element) the absence of a valid defence.’
D.J. Lanham [1976] Crim LR 276
These latin phrases are taken from Edward Coke’s institutes, who stated that ‘an act does not make a person guilty unless (their) mind is also guilty.’ Actus Reus broadly translates as a guilty act, however this can be misleading.
A defendant can be found to have committed the actus reus
of an offence despite the fact that he took no action at all; he can be guilty of a crime by his omission or failure to act. The defendant’s conduct must be accompanied by a state of mind required for that crime.
Strict Liability Offenses
Note that there are some crimes which do not require any particular state of mind and are regulatory in nature. These are known as strict liability offences and are beyond
the scope of this workbook. If a defendant is found to have committed the actus reus of a crime,
with the required mens rea, he still may be able to avoid liability should there be some justification
or excuse for his behaviour.
Goals of the chapter
- This chapter will begin by looking at types of actus reus and consider how crimes can be
classified. - It will then move on to omissions, by considering the general rule and exceptions to this rule.
- It will then consider terminology which can be found in the mens rea, as well as mens rea
principles - It will then provide an overview of defences and finish by looking more closely at the offence of murder.
- Actus reus
Actus reus usually refers to the actions of the defendant that are prohibited by law. However, as
you will see, the actus reus can be much wider than just doing something. This is an essential
element of the offence. To assist in determining the relevant rules, offences can be categorised in
a number of different ways.
Categories of actus reus
We will look at four types of actus reus:
* Conduct;
* Result;
* Offences with surrounding circumstances; and
* Omissions.
2.1 Conduct offences
In some cases, offences will only require certain acts to have been committed by the defendant to
satisfy the actus reus. For example, the conduct required for fraud by false representation under s 2 Fraud Act 2006 is that the defendant makes a false representation. It is not necessary that the victim is deceived by the representation
2.2 Result offences
The actus reus of result crimes requires more than just the defendant’s action. Here, the action
must lead to a specified consequence. In such cases, it must be proved that the action actually
caused the result. One example of a result offence is murder, where the actions of the defendant must cause the death of the victim. Other examples include manslaughter, grievous bodily harm (GBH) and
actual bodily harm (ABH).
2.3 Surrounding circumstances
The actus reus can also include the need for some particular surrounding circumstance.
Under s 1(1) Theft Act 1968, the actus reus of theft is defined as the appropriation of property
‘belonging to another’. The surrounding circumstance the prosecution must prove is that the
property belonged to someone other than the thief.
2.4 Omissions
A defendant can be held to have committed the actus reus of an offence despite taking no action
at all. Although the general rule that there is no liability for failure to act, the criminal law will, in certain circumstances, impose a legal obligation to act which if breached could result in criminal liability. An on-duty lifeguard could be liable for gross negligence manslaughter if a swimmer drowned due to a failure to take any action to help.
2.5 How to identify the actus reus
Consider the following offences:
Section 1(1) Theft Act 1968 provides:
‘A person is guilty of theft if he dishonestly appropriates property belonging to another with
the intention of permanently depriving the other of it.’
Section 1(1) Criminal Damage Act 1971 states:
‘A person who without lawful excuse destroys or damages any property belonging to another
intending to destroy or damage any such property or being reckless as to whether any such
property would be destroyed or damaged shall be guilty of an offence.’ Can you break these offences down into their component parts? What is the actus reus of these offences? What is the mens rea?
2.6 Summary
- In this section you have learnt the definition of actus reus and you have practiced identifying
the actus reus from offences. - The actus reus of an offence can be the prohibited:
- Conduct;
- Result;
- Circumstances; and/or
- Omissions of the defendant.
3 Actus reus: Causation
3.1 Result crimes
Result crimes require that the defendant’s conduct cause a particular result. Result crimes include murder, manslaughter, criminal damage, and assault occasioning actual bodily harm. Causation is part of the actus reus of these types of offences
Two types of causation
There are two aspects to causation, both of which must be proved by the prosecution:
* Factual causation: The jury must be satisfied that the acts or omissions of the accused were in
fact the cause of the relevant consequence.
* Legal causation: It must be established that the acts or omissions of the accused were a legal cause of that consequence.
The actus reus of murder
The actus reus of murder is the ‘unlawful killing of a human being under the King’s Peace’.
The word ‘killing’ suggests that murder is a result crime which requires the prosecution to show
that the defendant’s acts or omissions caused the death of the victim. To do this, the tests of factual and legal causation must be satisfied. We will consider those tests in greater detail now
3.2 Factual causation: The ‘but for’ test
Factually, it must be proved that ‘but for’ the acts or omissions of the accused, the relevant consequence would not have occurred in the way that it did (R v White [1910] 2 KB 124). In other words, if you eliminate the act of the defendant would the prohibited harm have occurred
anyway?
Key case: R v White [1910] 2 KB 124
Facts: W put poison in a drink intending to kill his mother. She was subsequently found dead. It
was not clear on the evidence whether she had drunk any of the liquid from the glass. Medical
evidence showed that she had died from heart failure, not from poisoning.
Held: W was therefore acquitted of murder, there being no causal link between the consequence and his act. However, he was guilty of attempted murder.
Key case: R v Dyson [1908] 2 KB 454
Facts: This was at a time before antibiotics and when meningitis was not curable. The victim, a
child, had meningitis. Dyson threw her down the stairs and she died. It was argued that the child
was going to die in any event, and the actions of the defendant had not caused death.
Held: Any action which accelerates death is a cause.
3.3 Legal causation
The law will step in to prevent a person from being responsible for all acts that arise from their
actions. For example, if X asks Y to a party and on the way to the party Y is stabbed by Z, it is
clear that, but for X’s invitation, Y would not have been on the way to the party, which led Y to
being stabbed by Z. However, X should not be held responsible for the stabbing, and will not be
the legal cause of the attack
Culpability of the defendant
The law will check the culpability of the defendant before imposing liability and it will require that
the defendant is the ‘operating and substantial’ cause of the prohibited consequence (R v Pagett
(1983) 76 Cr App R 279)
Only factors that are relevant
When determining the legal cause, the law may have regard to some of the following factors.
When completing your analysis of given facts you should only deal with the law which is relevant
to the facts of your case. The key legal causation principles are:
* The defendant’s act must be the ‘substantial’ cause of the prohibited harm (R v Hughes).
* The consequence must be caused by the defendant’s culpable act (R v Dalloway).
* The defendant’s act need not be the only cause of the prohibited consequence (R v Benge)
Key case: R v Hughes [2013] UKSC 56
The defendant’s act must be the ‘substantial’ cause of the prohibited harm
Lord Hughes and Lord
Toulson
Where there are multiple legally effective causes, whether of a road traffic accident or of any
other event, it suffices if the act or omission under consideration is a significant (or substantial)
cause, in the sense that it is not de minimis or minimal. It need not be the only or the principal
cause. It must, however, be a cause which is more than de minimis, more than minimal.
Key case: R v Dalloway [1847] 2 Cox CC
Facts: The defendant was driving a horse and cart without holding the reins. A child ran in front of
the cart, he was struck by one of the wheels and killed. It appeared on the evidence that, even if
the defendant had been holding the reins, he could not have stopped the cart in time.
Held: If Dalloway had not been driving the cart, the child would not have been killed, and in that
sense he ‘caused’ the death. However the court held it was necessary to go further and show that the death was due to the culpable element in his act – the negligence in not using the reins.
Accordingly, D’s conduct was not to blame for the killing and he was acquitted of manslaughter.