Practical guide
How to draft a defense brief under Art. 415-bis c.p.p. with AI
4 min read · Updated May 2026 · Editorial oversight: Avv. Federico Papa
The defense brief pursuant to Art. 415-bis c.p.p. is the principal document through which a suspect exercises the right of defense upon the conclusion of preliminary investigations. Upon service of the notice of conclusion of preliminary investigations, the defense has twenty days to submit representations directly to the Public Prosecutor before any decision to prosecute is made. The primary objective of this brief is to induce the Prosecutor to file a motion for dismissal (archiviazione), demonstrating the groundlessness of the allegations or the insufficiency of the evidence. This procedural juncture demands technical rigor and careful scrutiny of the prosecution file.
In brief
The defense brief pursuant to Art. 415-bis c.p.p. allows the suspect to interact with the Public Prosecutor within twenty days of the notice of conclusion of preliminary investigations. This act aims to prompt dismissal by highlighting groundless allegations or evidentiary incompleteness. The defense may submit defensive investigation records, request additional investigative acts, or demand a suspect interrogation. Failure to conduct a timely requested interrogation results in the nullity of the trial request. Filing is performed via the Portale Deposito Atti Penali (PDP) with digital signature. AI supports the technical drafting.
The steps
- 1.
Examination of the prosecution file and deadlines
The process begins with reviewing and obtaining copies of the prosecution file deposited at the Prosecutor's registry upon service of the Art. 415-bis c.p.p. notice. Defense counsel must carefully calculate the twenty-day deadline from service, within which written submissions or investigative requests must be filed. Compliance with this deadline is mandatory for exercising specific rights, such as requesting the suspect's interrogation: if the request is not filed within the deadline, the Prosecutor is under no obligation to conduct it. A detailed examination of reports, wiretap transcripts, and seizure orders is essential for any defense on the merits.
- 2.
Analysis of the provisional charges
The brief should begin with a critical analysis of the provisional charge set forth in the notice, assessing whether the alleged facts correspond to the evidence in the investigation file. It is crucial to determine whether essential elements of the offense are lacking, under both objective and subjective profiles, highlighting any logical inconsistencies or contradictions in the prosecution's evidence. This comparison enables the defense to focus the submission on key arguments capable of influencing the outcome of the proceeding.
- 3.
Formulating defense arguments
This section articulates exculpatory arguments, refuting the prosecution's allegations through an alternative factual reconstruction supported by the case records. A mere general denial of responsibility is insufficient; counsel must specifically demonstrate why the incriminating evidence is unreliable or inadequate to support a conviction at trial. The brief may also raise procedural exceptions or lack of conditions for prosecution that bar the criminal action. The objective is to convince the Prosecutor that the evidence collected does not support a reasonable prospect of conviction.
- 4.
Request for additional investigations
Pursuant to Art. 415-bis, paragraph 3, c.p.p., the defense may indicate elements of proof and request the Prosecutor to perform specific investigative acts. Such requests must be reasoned and aimed at establishing favorable circumstances for the suspect. While the Prosecutor retains discretion regarding the execution of the requested acts, any failure to perform relevant and decisive investigations can be raised in subsequent procedural phases. Counsel should attach relevant documentary evidence or reports of defense investigations already conducted.
- 5.
Request for the suspect's interrogation
Where strategically advisable, the brief may include a formal request for the suspect to be interrogated, an act the Public Prosecutor is legally bound to perform if requested within the statutory deadline. Interrogation under Art. 415-bis c.p.p. requires careful evaluation: while it allows the suspect to clarify their position, it exposes them to direct examination by the Prosecutor. Before filing this request, defense counsel must thoroughly prepare the client using the disclosed investigation files. If the suspect appears to render statements, the Prosecutor must proceed with the interrogation and record a formal report.
- 6.
Conclusions and electronic filing
The brief must conclude with formal motions explicitly requesting the dismissal of the proceedings under the relevant statutory provisions. The submission, digitally signed by defense counsel acting under a valid power of attorney, must be filed electronically via the Portale Deposito Atti Penali (PDP), save for statutory exceptions. Counsel must retain the filing receipt confirming compliance with the twenty-day deadline. Correctly specifying the RGNR number and the assigned Deputy Prosecutor ensures the proper and prompt association of the submission with the electronic file.
Legal basis: art. 415-bis c.p.p.
Related checklist: what to check before filing the defense brief under Art. 415-bis c.p.p.The template structure
The standard sections that make up the document. The full template can be opened and completed directly on edit.legal.
Public Prosecutor and proceedings
Contains the indication of the competent Public Prosecutor's Office, the presiding magistrate, and the general registry number of crime reports (RGNR).
Suspect and counsel
Identifies the suspect with their personal details and the appointed defense counsel signing the submission.
Premises: notice and charges
Summarizes the service of the Art. 415-bis c.p.p. notice and the provisional charges.
Exculpatory grounds and requests
Main body of the brief setting out factual and legal arguments, as well as requests for additional investigation or interrogation.
Conclusions
Final formulation of motions requesting dismissal or the execution of specified investigative acts.
Date and signature
Indicates the place and date of drafting and includes counsel's digital signature.
Mistakes to avoid
- Filing the brief beyond the twenty-day deadline from service of the notice, releasing the Prosecutor from the obligation to conduct the requested interrogation.
- Vague or non-specific requests for additional investigative acts, compromising their persuasive effectiveness.
- Requesting an interrogation prior to a complete review of the disclosed prosecution file, risking prejudicial statements by the suspect.
- Submitting the brief through unauthorized filing channels (e.g., standard certified email instead of the PDP Portal), leading to inadmissibility.
Frequently asked questions
Can the 20-day deadline for the Art. 415-bis c.p.p. brief be extended?
No, the twenty-day deadline is statutory and mandatory for exercising specific defense rights under Art. 415-bis c.p.p., such as requesting an interrogation. Defense counsel may still submit briefs until the Prosecutor takes final determinations, but past the twenty-day mark, the Prosecutor is no longer legally required to defer decisions or perform requested investigative acts.
What happens if the Prosecutor does not conduct the requested interrogation?
If the request for interrogation is filed within the twenty-day deadline, the Prosecutor is legally required to perform the act. Failure to interrogate the suspect results in the nullity of any subsequent request for indictment or direct summons to trial, pursuant to Art. 415-bis, paragraph 4, c.p.p.
Is it possible to produce new documents with the brief?
Yes. Document production is one of the primary defense rights under Art. 415-bis, paragraph 3, c.p.p. Documents, expert opinion reports, or records of defense investigations may be attached to the brief to present the Prosecutor with evidence supporting the defense position.

What edit.legal automates
- —Automatic header generation based on RGNR and Prosecutor data from the digital file.
- —Automated 20-day filing deadline tracking with integrated alerts for Art. 415-bis c.p.p.
- —Pre-set templates for interrogation and additional investigation requests with verified legal citations.
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