“Conduct to which this Part applies shall be lawful for all purposes if – (a) an authorisation under this Part confers an entitlement to engage in that conduct on the person whose conduct it is; and (b) his conduct is in accordance with that authorisation.”
“The Tribunal is the appropriate forum for any complaint if it is a complaint by a person who is aggrieved by any [such] conduct … which he believes: (a) to have taken place in relation to him, to any of his property, to any communications sent by or to him, or intended for him, or to his use of any postal service, telecommunication service or telecommunication system; (b) and to have taken place in challengeable circumstances or to have been carried out by or on behalf of any of the intelligence services”
“104 It has been vigorously argued in the course of this appeal that, because under English law the admissibility of evidence in a criminal trial does not depend upon whether or not it has been obtained by lawful means, and because in an intrusive surveillance case, a defendant will rarely be able to mount an argument of procedural unfairness based simply upon a breach of Article 8, the effect of the decision in R –v- P is, in most trials, both to render Article 8 of no practical significance and s.78 of no practical utility, in respect of the potential exclusion of probe evidence illegally obtained in breach of a defendant’s right to privacy provided for in Article 8. That may well be the position in most cases. That is not a surprising conclusion because, as Lord Hobhouse explained, Article 8 is not concerned with questions as to the admissibility of evidence. In a case where there has been a flagrant non-use or misuse of the authorisation procedures laid down there may well be grounds for a stay on grounds of abuse of process and, in any event, a demonstration of such executive lawlessness will also require to be taken into consideration on the issue of fairness. Lord Hobhouse made clear that, when exercising his discretion under section 78, the judge must have regard to all the circumstances in which the evidence was obtained. However, since, as again Lord Hobhouse pointed out, s. 78 is concerned with the fairness of the trial process, the fact that evidence has been obtained unlawfully is unlikely in itself to weigh very heavily in the scales. It is however impossible to foresee all situations and s.78 is available as a ‘safety net’ in cases engaging Article 8, as is plainly envisaged in both the Strasbourg and English jurisprudence. In cases such as the present, however, the defendant is unlikely to be disadvantaged in dealing with the intercept material. 105. Finally, it has been urged upon us that, unless there is exclusion of such evidence under s. 78, the criminal courts are unable to grant an effective remedy to a defendant in respect of the breach of privacy involved. If, by reference to ‘an effective remedy’ is meant a remedy which excludes the cogent evidence of criminality which tape recorded conversation of a defendant may provide, that is correct. It is the essential function of a criminal court in this country to provide a fair trial on the basis of the evidence available (Article 6 considerations) rather than to provide remedies for breaches of Article 8. In English law, the effective remedy intended to be available is that provided under the 1997 Act as subsequently amended. Like the judge we would hold that, even if the arguments as to ‘form not substance’ and ‘proportionality’ demonstrated a breach of Article 8 in respect of the appellant’s rights to privacy (which in our view they do not), a fair trial is nonetheless possible.”
“It seems to us that this sub-section does not preclude, in itself, …an inquiry into the question of whether or not the relevant decision of the Commissioner has been obtained by deception or by some other reprehensible conduct amounting to an abuse of process, which could found an argument under s. 78 of the Police and Criminal Evidence Act to the effect that evidence so obtained should be excluded. ”