7. Parties Flashcards
Who is a principal offender?
Person committing actus reus w/ requisite mens rea
When are two defendants both considered to be principal offenders?
If they act together for a common purpose, in committing the act
What is an innocent agent situation, and who is liable?
Where a defendant asks another do something the defendant knows will amount to an offence, but the other person is unaware, defendant can still be guilty as a principal
Actus Reus for accessorial liability
- the principal offender must commit a principal offence.
- the accessory must aid, abet, counsel, or procure the commission of the principal offence.
- take place before or at the time of the offence.
What is abetting?
Encouraging or inciting an offence at time offence is committed/crime scene
Under the doctrine of joint enterprise, when might a secondary participant in a crime be treated as a principal?
If the offence (AR) was committed in the presence of both the principal and secondary party pursuant to a preconceived plan. Acting in concert.
- Accessory is there when the offence is committed and intends for P to commit offence with requisite MR.
Distinction between principal offender and secondary party in committing offence
Secondary party/accessory does not directly commit the actus reus of the offence.
How much knowledge of the principal offence must a secondary party have
to be liable as an accessory?
must know circumstances forming actus reus.
AND
- principal offender would act with requisite mens rea.
- wilful blindness = sufficient
In what circumstance, must a causal link be established between the principal offence and an accessory’s conduct?
only necessary for procurement
- there must be a causal link between accessory’s contribution and principal’s offending
Is mere presence at the scene or failure to intervene/prevent sufficient?
NO - need to satisfy MR!
Mens Rea for accessorial liability
- knowledge of essential matters for the principal offence:
- principal will commit AR and mens rea of offence.
AND
- intend to assist or encourage for the principal offence to be committed
Is it necessary to prove that encourage or assistance had a positive effect on principal offender’s conduct or the outcome?
No!
- Still potentially liable even where encouragement cannot be shown to have made different/was ignored by principal.
Threshold of knowledge needed to satisfy the mens rea for accessorial liability
- know the type or range of crime(s) being committed.
- Not necessary for D to know exact offence taking place and particular details (who, when, where)
Contrast:
- insufficient = if simply aware that something illegal is happening.
Will accessory be liable even where principal offender commits offence beyond that which accessory intended to be committed by P?
No - accessory’s intention must match that required by principal offence.
- if a principal offender escalates violence and kills victim = not liable as accessory to murder if did not encourage/assist w/ intent to kill. Instead, could be liable for manslaughter (R v Jogee).
Can intention be made out even if accessory is not aware of the precise manner in which the offence will be carried out?
- yes (DPP for N.I v Maxwell)