Part 4
Parties to the commission of offences
66 Parties to offences
(2) Where 2 or more persons form a common intention to prosecute any unlawful purpose, and to assist each other therein, each of them is a party to every offence committed by any one of them in the prosecution of the common purpose if the commission of that offence was known to be a probable con-sequence of the prosecution of the common purpose.
Assisting
Common purpose
Mental element
Knowledge - national proceedings
EDIT.