Seizure of Smartphones and the Right to Review: The Important Ruling of the Court of Cassation n. 26372/2025

In the digital age, the smartphone has become an extension of our lives, a veritable archive of personal data, private communications, and sensitive information. When these devices are subjected to evidentiary seizure as part of a criminal investigation, complex issues arise regarding the protection of privacy and the right to defense. A recent and significant intervention by the Court of Cassation, with ruling no. 26372 of 2025, has clarified a crucial point: the persistence of the interest in filing a review even when the phone has already been returned to its owner, after a forensic copy has been extracted.

Evidentiary Seizure and the Peculiarity of Smartphones

Evidentiary seizure is an investigative tool provided for by articles 253 et seq. of the Code of Criminal Procedure (c.p.p.), which allows the judicial authority to acquire items relevant to the crime, necessary for the ascertainment of facts. While the logic for 'physical' objects may seem more straightforward, the situation becomes complicated for electronic devices, particularly smartphones. These devices, in fact, do not contain simple 'things' but an enormous volume of digital data reflecting an individual's private life. The European Convention on Human Rights (ECHR), in Article 8, protects the right to respect for private and family life, correspondence, and home, principles that are fully applicable in the digital context as well.

Often, after the seizure of a smartphone, a 'forensic copy' is extracted, meaning an identical and unaltered copy of all data present on the device. Once this copy is obtained, the physical phone can be returned to the rightful owner. One might ask: if the phone has been returned to the owner's possession, what is the interest in challenging the original seizure? It is precisely on this question that the Supreme Court has provided an illuminating answer.

Ruling n. 26372/2025: A Beacon on the Protection of the Right to Defense

The case examined by the Court of Cassation, which involved Mr. D. G. as the defendant and P.M. L. M. F., concerned precisely an evidentiary seizure of a mobile phone. The Court of Review of Savona had partially annulled the measure without referral, but the issue of the interest in appealing had been the subject of debate. The Court of Cassation, with ruling 26372/2025, affirmed a principle of fundamental importance, which we report below:

In cases of evidentiary seizure of a mobile phone containing digital data, even if already returned to the rightful owner after extraction of a "forensic copy," the interest of the latter in filing a review to verify the existence of the prerequisites for applying the measure exists in itself, without the need to demonstrate exclusive possession of what is contained therein, given that a "smartphone" is a device by its very nature intended to collect personal and confidential information.

This maxim is of crucial importance. The Court, in fact, recognized that the interest in challenging the seizure (through the review mechanism, ex art. 324 c.p.p.) persists even if the physical device has been returned and a forensic copy has been acquired. The reasons are clear and profound:

• Intrinsic Nature of the Smartphone: A smartphone is, by its very essence, a container of personal and confidential data. Its search and the acquisition of its contents touch upon the core of an individual's private life.
• The Forensic Copy Does Not Nullify the Invasion: Even if the phone is returned, the forensic copy remains in the hands of the authorities. This means that the invasion of privacy, which occurred with the seizure and data extraction, is a fait accompli that deserves to be reviewed for its legitimacy.
• Control Over the Prerequisites of the Measure: The interest in review does not cease with the physical availability of the item, but concerns the legitimacy and proportionality of the original coercive measure. It is essential to verify that the seizure occurred in compliance with the law (artt. 253, 254 c.p.p.) and that the prerequisites for its application were indeed present.
• Protection of Privacy: The right to privacy, also strengthened by the ECHR, requires that any state intrusion into the personal sphere be strictly necessary and proportionate. Review is the appropriate forum to ensure this control.

Practical Implications and Guarantees for the Citizen

This ruling significantly strengthens the guarantees for citizens in the context of criminal investigations involving digital devices. It is no longer sufficient for the prosecution to return the smartphone to evade judicial review of the seizure's legality. The suspect, or their defense counsel, has the full right to ask the Court of Review to verify whether the seizure was indeed based on valid prerequisites, even if the data has already been copied and the phone has been returned to its owner.

This decision aligns with jurisprudence that, in recent years, has shown increasing attention to the protection of fundamental rights in criminal proceedings, especially in the face of challenges posed by new technologies. It underscores the importance of effective judicial oversight over any act that may infringe upon the sphere of confidentiality, ensuring that investigative activities are always in compliance with the principles of legality and proportionality.

Conclusions

Ruling no. 26372 of 2025 by the Court of Cassation represents a firm point in Italian jurisprudence regarding evidentiary seizures of smartphones. By affirming the persistence of the interest in filing a review even after the return of the device with a forensic copy, the Supreme Court has reiterated the centrality of the right to defense and the protection of privacy. For those facing the seizure of digital data, it is crucial to be aware of these rights and to seek qualified legal assistance to ensure that every aspect of the measure is subjected to due judicial review, thereby protecting one's personal and procedural sphere.