The requested person challenged the refusal to replace extradition detention with house arrest and electronic monitoring after the judicial decision authorising extradition to Peru had become final. The Italian Supreme Court held that precautionary needs and judicial review of their continued existence extend into the subsequent administrative phase of extradition, during which statutory maximum time limits also apply. Courts must therefore remain able to assess whether concrete and current precautionary needs, particularly flight risk, still justify detention or instead require its attenuation or revocation. The Court distinguished this situation from detention ordered during the administrative phase under Article 704(3) of the Code of Criminal Procedure for the imminent execution of the ministerial decree and the physical surrender of the requested person, which is functional to immediate delivery and does not depend on a separate assessment of precautionary needs. Since the Court of Appeal had failed to address the request for a less restrictive measure, the order was annulled and remitted for reconsideration.

The extension of the time limits of custodial detention ordered for extradition purposes — sought by the Prosecutor General pursuant to Article 714(4) of the Italian Code of Criminal Procedure — must be decided by the Court of Appeal, failing which the decision is void under the intermediate nullity regime, after a concrete and effective adversarial exchange between the parties. Such exchange does not require a participatory chamber procedure, but may also take place in written form.

Court of Appeal correctly pointed out that the defence submissions referred to a situation of significant political instability in Peru, but did not in any way substantiate — on the basis of reports issued by reliable organisations — the alleged serious problems of prison overcrowding. In the substantial absence of elements capable of raising doubts as to the risk of being subjected to inhuman or degrading treatment, it must be excluded that the Court of Appeal is under an obligation to nonetheless request further information, as this would amount to a merely exploratory activity, not justified by proven elements capable of undermining the principle of mutual trust between States. This principle is grounded in the treaty-based nature of extradition agreements, which are founded on a relationship of mutual confidence and reliance between States. Accordingly, the domestic judicial authority is required to seek additional information only where that presumption of reliability is called into question on the basis of concrete elements, which may also be derived from open sources, provided they are deemed reliable. Therefore, in the absence of any element capable of giving rise to suspicion that the conditions of detention would not comply with human rights standards, no general duty to request further information or assurances can be invoked, as this would undermine the very principle of mutual trust underpinning extradition treaties. Moreover, in the case law of this Court, there are no recent precedents establishing that detention conditions in Peru are incompatible with the protection of human rights.

The Court may place particular emphasis on the seriousness of the offences for which the person is sought (murder and robbery) and on the corresponding penalties, as well as on the circumstance that the individual is unlawfully present in the national territory, lacking a residence permit. Although some arguments relied upon are not entirely pertinent (such as the alleged unreliability of electronic monitoring devices—so-called “electronic bracelets”—in ensuring compliance with custodial requirements, “as unfortunately demonstrated by numerous news reports”), the reasoning of the Court of Appeal is primarily grounded on the seriousness of the offences for which the person is sought and the severity of the applicable penalties, in addition to the fact that the individual is illegally present in the national territory. These elements consistently led the Court to consider as recessive the circumstances put forward by the defence, namely that the applicant has relatives in Italy willing to accommodate him and that he carries out undeclared work. This constitutes a reasoning that is by no means merely apparent and, as such, is not subject to challenge at this stage. The appeal, in fact, alleges an erroneous assessment of the elements underlying the decision, thus raising an issue of reasoning which is not reviewable under Article 719 of the Italian Code of Criminal Procedure.

The requirements of concreteness and immediacy of the risk of flight, for the purpose of applying coercive measures, must be assessed by the precautionary judge on the basis of specific indicators capable of demonstrating—even inferentially—the existence of a real and foreseeable risk that the requested person may abscond in the near future, such as to justify the imposition of a restrictive measure. The severity of the sentence to which the person would be exposed in the event of surrender does not, in itself, constitute a relevant circumstance for these purposes.

The case concerned a request by Peru for the extradition of a Peruvian national accused of drug trafficking for allegedly attempting to export cocaine to the United States. The requested person challenged the extradition decision arguing that the general human rights situation in Peru, including prison overcrowding, poor detention conditions, corruption within institutions, and concerns regarding judicial independence, exposed her to a real risk of inhuman or degrading treatment. The Italian Supreme Court of Cassation held that the Court of Appeal had failed to adequately address the detailed submissions and international reports produced by the defence, including reports from Amnesty International and the Italian Embassy. The Court reiterated that, even in the presence of a bilateral extradition treaty, Italian courts must conduct a concrete assessment of detention conditions in the requesting State and, where necessary, seek additional information. The extradition decision was therefore annulled and remanded for a new assessment.

In matters of extradition to a foreign State, the late transmission of the surrender request by the Republic of Peru, after the arrest has been carried out, does not entail the nullity of the extradition proceedings, nor does it in itself indicate a lack of continued interest on the part of the requesting State, since the Extradition Treaty between Italy and Peru, ratified by Law No. 135 of 3 May 2004, contains no provision to that effect, without prejudice to the termination of the custodial measure upon the expiry of the ninety-day time limit.