Barnard
A “lesser” purpose may be included in the larger one if the offences are of the same type but the reverse is not true.
Griffiths
Each conspirator must share the common unlawful purpose or design.
Broad
Differences in the content of the agreement are irrelevant insofar as each party contemplates a course of conduct leading to the commission of the same offence.
Walker
If agreement is conditional there is no conspiracy.
O’Hadhmaill (2 precedents)
If the commission of the crime is conditional it is a conspiracy.
There should be as many separate courses of conduct as crimes the parties unequivocally agree to commit.
Bolton
“Course of conduct” is to be given a broad interpretation embracing acts/omissions and consequences
Edwards/Saik
Intent to carry out the course of conduct amounting to a crime is part of the mens rea for conspiracy.
Cooke
Oblique intent that the course of conduct amounting to the commission of a crime will be carried out is sufficient for statutory conspiracy.
Saik (2 precedents)
Roberts
For multi-offence conspiracies it must be shown that each conspirator agreed to the most serious of the offences for them to be charged with a single conspiracy.
Siracusa
The requirement in Anderson that D must intend to play some part in carrying out the course of conduct amounting to a crime is satisfied if D merely fails to prevent the commission of the offence.