“68. Offence of aggravated trespass (1) A person commits the offence of aggravated trespass if he trespasses on land [in the open air] and, in relation to any lawful activity which persons are engaging in or are about to engage in on that or adjoining land [in the open air], does there anything which is intended by him to have the effect— (a) of intimidating those persons or any of them so as to deter them or any of them from engaging in that activity, (b) of obstructing that activity, or (c) of disrupting that activity.”
“… before staying the proceedings it was necessary to be satisfied that the prosecution amounted to a manipulation of the process which the court could not sanction.” and: “We cannot accept that the House of Lords in R v Rimmington created a new and free-ranging category of abuse of process which allows a court to stop a prosecution in these circumstances whenever it considers that the prosecution lacks a good reason for having charged public nuisance rather than a statutory alternative.”
“30. … Where Parliament has defined the ingredients of an offence, perhaps stipulating what shall and shall not be a defence, and has prescribed a mode of trial and a maximum penalty, it must ordinarily be proper that conduct falling within that definition should be prosecuted for the statutory offence and not for a common law offence which may or may not provide the same defences and for which the potential penalty is unlimited. … It cannot in the ordinary way be a reason for resorting to the common law offence that the prosecutor is freed from mandatory time limits or restrictions on penalty. It must rather be assumed that Parliament imposed the restrictions which it did having considered and weighed up what the protection of the public reasonably demanded. I would not go to the length of holding that conduct may never be lawfully prosecuted as a generally-expressed common law crime where it falls within the terms of a specific statutory provision, but good practice and respect for the primacy of statute do in my judgment require that conduct falling within the terms of a specific statutory provision should be prosecuted under that provision unless there is good reason for doing otherwise.”
“… Where Parliament has not abolished the relevant area of the common law when it enacts a statutory offence, it cannot be said that the Crown can never properly frame a common law charge to cover conduct which is covered by the statutory offence.”
“It is not for the Crown to second-guess Parliament’s judgment as to any of these matters by deliberately setting out to reject the applicable statutory offences and to charge the conduct in question under common law in order to avoid the time-limits or limits on sentence which Parliament has thought appropriate. …”
“In our opinion, Lord Rodger captured the essence of the matter in cases of this sort in his discussion … of respecting the will of Parliament. A prosecution for public nuisance brought instead of a statutory offence which covers substantially the same ground to avoid an awkward time limit or seek a sentence beyond the statutory maximum might well be such an abuse. So too might be a calculated decision to deny a defendant the benefit of a statutory defence not available when charged with public nuisance. The fact that a prosecutor has not followed good practice, as Lord Bingham put it, would not be enough.”
“… We emphasise that the court should be slow to interfere with a prosecutorial decision taken in good faith where there is no suggestion that the respondents could not receive a fair trial. We have rejected the Respondents' submission that a failure to follow "good practice" as identified in Rimmington will amount to an abuse of process without more. As the authorities referred to above demonstrate, an abuse of process arises when the integrity of the justice system is under threat, not merely where good practice is not followed, serious though that may be.”
“… A contention that a decision to prosecute was disproportionate is not one which criminal courts can rule on unless it amounts to an abuse of process, itself an exceptional and limited remedy.” (Emphasis added)
“The proportionality, for the purposes of Articles 10 or 11, of a decision to prosecute is simply not an issue for the trial Courts to deal with. It is for the prosecutor to decide whether or not to prosecute; it is not for the trial court to reach that decision. Its task is to try the case on the evidence admissible in a criminal trial.”
“… that is a matter for the decision of the Crown Prosecution Service, whose function it is to make such decisions. The magistrates’ court is not itself thereafter required to review such a decision.”
“It further follows that it would be improper for defendants, under the guise of an abuse of process application made to the magistrates’ court, to advance arguments which are in truth simply directed at considerations of the proportionality of the decision to prosecute. Applications for a stay on the grounds of an abuse of process are to be circumscribed and orders of stay are, when made, granted only exceptionally. Applications for a stay on the ground of abuse of process must not themselves be permitted to become an abuse.”
“there is in essence a bargain or mutual understanding operating in such cases. A sense of proportion on the part of the offenders in avoiding excessive damage or inconvenience is matched by a relatively benign approach to sentencing. When sentencing an offender, the value of the right to freedom of expression finds its voice in the approach to sentencing.”
“The Strasbourg jurisprudence does not support the proposition that detention is necessarily disproportionate for the conduct with which these appeals are concerned. On the contrary, the Strasbourg Court has accepted as proportionate both immediate sentences of imprisonment and suspended sentences in cases where the conduct in question caused less harm and was less culpable. In this way, the ECHR marches with the common law. The underlying circumstances of peaceful protest are at the heart of the sentencing exercise. There are no bright lines, but particular caution attaches to immediate custodial sentences.”