False Declarations of Identity and the Nemo Tenetur Se Detegere Principle: Cassation Order No. 21620/2025

In criminal law, false statements to a public official are a crucial issue. Can an individual, fearing consequences, refuse to disclose their identity during a police check, invoking the right against self-incrimination? The Court of Cassation, with Order No. 21620 of May 7, 2025 (filed on June 9, 2025), has clarified the boundaries between the duty of truthfulness and the principle of "nemo tenetur se detegere." This ruling, concerning defendant Mr. D. G., declares the appeal inadmissible against the judgment of the Court of Appeal of Trieste, confirming an important precedent. Let's analyze the implications.

The "Nemo Tenetur Se Detegere": Right and Limits

The Latin maxim "nemo tenetur se detegere" means "no one is obliged to incriminate themselves," expressing the right against self-incrimination. Essential for the right of defense (Art. 24 of the Constitution), it applies in criminal proceedings, ensuring that no one is forced to provide evidence against themselves. It is a safeguard for the accused, but it has precise limits and is not absolute.

The Cassation Ruling: Duty of Truthfulness in Checks

Order No. 21620/2025 clarifies the applicability of "nemo tenetur se detegere" in cases of false statements of identity to a public official. The Cassation Court has unequivocally ruled:

In matters of false statements to a public official regarding one's identity pursuant to Article 495 of the Criminal Code, the principle "nemo tenetur se detegere" cannot be applied by those who, following a mere check by judicial police, have provided false information fearing self-incrimination under Article 10-bis of Legislative Decree of July 25, 1998, No. 286, or other negative consequences such as expulsion, if they had stated their real particulars. This is because the aforementioned principle operates only within the scope of sanctioning proceedings, whether administrative or criminal, that have already commenced, and it has a recessive value compared to the general principle of efficient public administration pursuant to Article 97 of the Constitution (See Constitutional Court, Judgment No. 111 of 2023).

This maxim is crucial. The Court emphasizes that the principle of not self-incriminating cannot be invoked by someone who, during a mere police check, provides false particulars to avoid incrimination (such as irregular status in national territory, pursuant to Art. 10-bis of Legislative Decree No. 286/1998) or administrative consequences (e.g., expulsion). The reasons are clear:

• It only applies if a sanctioning proceeding has already commenced. A mere police check does not fall under this category.
• It has "recessive value" compared to the efficient functioning of public administration (Art. 97 of the Constitution). The duty to provide one's true particulars is essential for the proper performance of public functions, as reiterated by the Constitutional Court (Judgment No. 111 of 2023).

Legal Consequences and Distinctions

The duty to provide truthful particulars is absolute and cannot be evaded out of fear of self-incrimination, unless one is already formally under investigation. A mendacious declaration, in the context of a "mere check," constitutes the crime of personal falsehood (Article 495 of the Criminal Code).

It is fundamental to distinguish the right to remain silent during an interrogation or a proceeding that has already begun – where "nemo tenetur se detegere" fully applies – from the duty to correctly identify oneself during a preliminary check phase. Here, the truthfulness of statements is crucial for the authorities' operations.

Conclusions

Order No. 21620/2025 of the Cassation Court reaffirms clarity and responsibility. The right against self-incrimination is a guarantee, but it does not authorize lying to authorities during a simple check. The need to ensure the efficient functioning of public administration and correct identification prevails, in defense of legality.

For complex situations or doubts, it is always advisable to seek the assistance of legal professionals. A lawyer experienced in criminal law can provide the necessary support, ensuring the protection of one's rights in compliance with current laws.