WIEDER AND GUARNIERI v. THE UNITED KINGDOM JUDGMENT be intercepted, stored and searched even if neither the sender nor recipient is of interest to the intelligence agencies. Moreover, the nature of electronic communications is such that the sender will not know which countries his communications passed through en route to the recipients, and cannot, therefore, know which States’ intelligence agencies might have had the opportunity to intercept them. Nonetheless, as the Convention does not provide for the institution of an actio popularis or for a review the relevant law and practice in abstracto (see Roman Zakharov, cited above, § 164), potential applicants must take steps to substantiate their claim that they were potentially at risk of having their communications intercepted, searched and possibly even examined under the impugned surveillance regime. 100. In the present case, it is not necessary for the Court to give detailed consideration to this question since the IPT, referring to the Court’s case-law, expressly accepted that the applicants had victim status in respect of their Article 8 complaint concerning the section 8(4) regime (see paragraph 21 above). The Government did not challenge that finding and Court would therefore accept that the applicants in the present case can claim to be victims of the alleged violation for the purposes of Article 34 of the Convention. 3. Admissibility 101. The complaint under Article 8 of the Convention is neither manifestly ill-founded nor inadmissible on any other grounds listed in Article 35 of the Convention. 102. The Article 8 complaint must therefore be declared admissible. 4. Merits 103. The Government accepted that there had been a breach of Article 8 of the Convention by virtue only of the respects in which the section 8(4) regime was held by the Grand Chamber in Big Brother Watch and Others (cited above) to violate that Article. 104. As the applicants do not contend that there has been any other violation of their rights under Article 8 of the Convention, the Court, for the reasons identified in Big Brother Watch and Others (namely, the absence of independent authorisation, the failure to include the categories of selectors in the application for a warrant, and the failure to subject selectors linked to an individual to prior internal authorisation (ibid, §§ 377-82)), finds that there has been a violation of that Article. B. Article 10 of the Convention 105. Under Article 10 of the Convention the applicants made identical complaints to those previously examined under Article 8 concerning the operation of the regime under section 8(4) of RIPA. 30