Practical guide

How to draft a request for precautionary measures under Art. 291 c.p.p. with AI

3 min read · Updated September 2026 · Editorial oversight: Avv. Federico Papa

The application procedure for personal precautionary measures (misure cautelari personali) in the Italian legal system is governed by the principle of petition, granting the Public Prosecutor exclusive initiative. The request must be drafted with analytical rigor to allow the judge to make a comprehensive assessment regarding the individual's liberty.

In brief

The request under Art. 291 c.p.p. is the mandatory prerequisite for the Judge for Preliminary Investigations (GIP) to issue a restrictive order. The document must contain an exposition of serious clues of guilt (gravi indizi di colpevolezza) and specific precautionary needs as per Art. 274 c.p.p. edit.legal assists the prosecutor in synthesizing investigation results and verifying the proportionality of the proposed measure, ensuring logical consistency between evidence and the requested restriction of personal freedom.

The steps

1.
Verification of serious clues of guilt
The first step involves analyzing the evidence to verify the existence of 'serious clues of guilt' (gravi indizi di colpevolezza) required by Art. 273 c.p.p. Mere probability is insufficient: a prognostic assessment of a high likelihood of conviction is necessary. The Public Prosecutor must select incriminating elements from the investigation files, highlighting their gravity, precision, and consistency to satisfy the judicial scrutiny of the competent judge.
2.
Qualification of precautionary needs
It is necessary to identify and document at least one of the three precautionary needs (esigenze cautelari) under Art. 274 c.p.p.: risk of tampering with evidence, risk of flight, or risk of recidivism. These needs must be current and concrete: reasoning based solely on the severity of the crime is not permitted. edit.legal can help structure the narrative of facts that specifically demonstrate the risk to the trial or to the community.
3.
Assessment of adequacy and proportionality
Pursuant to Art. 275 c.p.p., the PM must justify why the requested measure is the most suitable and least restrictive option to achieve the precautionary goal. It must be demonstrated that any less severe measure would be inadequate. When requesting jail custody (custodia cautelare in carcere), it must be explicitly stated why house arrest or other non-custodial measures are not applicable, respecting the principle of prison as a last resort.
4.
Drafting the request and attaching evidence
The document must be clearly structured: defendant's details, description of the alleged crimes, and an exposition of clues and needs. Crucially, all relevant documents supporting the request (minutes, wiretaps, expert reports) must be attached so the GIP can exercise independent judgment. An incomplete request or one that omits elements favorable to the suspect violates the Public Prosecutor's duty of procedural fairness.
5.
Filing and transmission to the G.I.P.
The request is filed with the Registry of the Judge for Preliminary Investigations. If presented during investigations, the PM transmits the founding elements, including those in favor of the suspect. Investigative secrecy is lifted on the documents submitted to the judge once the precautionary request is filed, making these documents accessible to the defense following the execution of the measure.

Legal basis: Art. 291 c.p.p.Art. 273 c.p.p.Art. 274 c.p.p.Art. 275 c.p.p.Art. 292 c.p.p.

Mistakes to avoid

Failure to state reasons why defense arguments already acquired were deemed irrelevant.
Use of boilerplate language or 'standard clauses' to justify the current nature of the risk of flight or recidivism.
Failure to attach fundamental documents cited in the request, preventing the judge from direct verification.
Requesting jail custody without adequately ruling out the effectiveness of less restrictive measures.

Frequently asked questions

Can the G.I.P. apply a more severe measure than the one requested?

No, the principle of petition applies: the judge cannot apply a measure more severe than the one requested by the Public Prosecutor, although they may apply a less severe one or reject the request entirely.

What happens if the PM fails to transmit evidence favorable to the suspect?

The omission of favorable elements may render the precautionary order unlawful due to defective reasoning, as the judge must be able to evaluate the evidentiary framework in its entirety.

Can the request be formulated orally?

Only in exceptional cases provided by law, such as during the hearing for the validation of an arrest or detention (convalida), otherwise it must be submitted in writing.

Editorial oversight: Avv. Federico Papa·ICAMUpdated 29 September 2026Content drafted with AI support and subject to editorial source checks. Despite these controls, inaccuracies may remain: reports and rectification requests are welcome. Report a correction

What edit.legal automates

—Automated summarization of witness statements to extract serious clues of guilt.
—Consistency check between the requested measure and the proportionality parameters of Art. 275 c.p.p.
—Rapid identification of exculpatory evidence within the file to fulfill disclosure obligations.
—Drafting of the precautionary order template based on the structure of the initial request.