Two people might, for example, agree to stop traffic in order to prevent an accident at the scene of a breakdown. They have two intentions: to stop traffic, and to prevent an accident. Do these two intentions exist without qualifying each other, so that the legal consequences of one are unaffected by the existence of the other?
In DPP v Hurnam (Mauritius)  UKPC 24 (25 April 2007) there is a reminder of these sorts of questions, although the case itself is a straightforward one. A criminal lawyer (the respondent) had been convicted of conspiring to hinder police by fabricating an alibi for a client, Bholah, in order to mislead the police in their investigation of a robbery. The Supreme Court of Mauritius had allowed his appeal against conviction on the basis that the prosecution had to prove an intention to hinder the police, as distinct from an intention to fabricate an alibi. The Privy Council restored the conviction.
“ …The Supreme Court was in their Lordships' view wrong to have regard only to the ultimate object or intention of the parties. A conspiracy may have several objects (cf the discussion in Williams, Criminal Law, The General Part, para 217) and one of the objects may constitute a means of achieving the ultimate object. As Webster J said in Lewis v Cox  QB 509, 517 in the context of obstructing a police constable in the execution of his duty:
“" … a court is not obliged … to assume that a defendant has only one intention and to find what that intention was, or even to assume that, if he has two intentions, it must find the predominant intention. If, for instance, a person runs into the road and holds up the traffic in order to prevent an accident, he clearly has two intentions: one is to hold up the traffic, and the other (which is the motive of that intention) is to prevent an accident. But motive is irrelevant to intention in the criminal law …"
“In this case the parties intended to assist Bholah to escape criminal liability, and they did so by means of fabricating an alibi, which would have the foreseeable and intended result of diverting the police from investigating his actions, so hindering their enquiry into the commission of the robbery. The immediate intention of their agreed course of conduct was to hinder the police in the accomplishment of their ultimate aim of exculpating Bholah. That in their Lordships' view was an agreement to hinder the police, sufficient to constitute the conspiracy with which the appellant was charged. The fact that the respondent and Bholah had an ultimate aim of exculpating the latter does not invalidate that conclusion.”
The Board mentioned (para 23) a couple of general points, the approach to findings of fact in lower courts, and the need to demonstrate a clear departure from the requirements of justice when appeals are as of right, as is the case in Mauritius. The Board declined to interfere with the sentence of 6 months’ imprisonment, holding that the delay (from 2000) had been occupied largely by the trial and the appeals process, and observing that the importance of maintaining the high standards of conduct at the criminal bar supported the sentence.
This case, while not deciding any new point of law, serves as a reminder that the concept of agreement, as an element of conspiracy, can include more than one objective.