Filing a complaint for abus de confiance (breach of trust) under French criminal law: a practical guide

Updated May 2026 — When a business owner or manager in France discovers that funds, assets or property entrusted to an employee, contractor or business partner have been diverted from their agreed purpose, the impulse is to act immediately. In practice, the strength of a complaint for abus de confiance — breach of trust under French criminal law — depends far more on thorough preparation than on speed. Securing evidence, correctly qualifying the facts, and documenting the financial loss in a structured way: that sequence is what gives a complaint its force.

This article explains the legal framework of abus de confiance under article 314-1 of the French Penal Code, the applicable penalties, the limitation period, the practical steps to prepare a solid complaint, and the role a chartered accountant (expert-comptable) can play before you engage a criminal defence lawyer (avocat pénaliste). It does not replace personalised legal advice.

Article 314-1 of the French Penal Code defines abus de confiance as the act of misappropriating, to the detriment of another, funds, securities or any other property that was delivered and accepted subject to an obligation to return it, represent it, or use it for a specific purpose.

Four cumulative elements must be established:

• a voluntary and prior delivery of funds or property to the accused;
• a specific purpose, obligation of return, or agreed use;
• fraudulent misappropriation or deliberate breach of that agreed use;
• a quantifiable harm suffered by the victim.

The distinction from a simple contractual dispute matters: a missed payment, a contested invoice, or a poorly executed contract does not automatically constitute abus de confiance. The fraudulent intent — conscious and deliberate misappropriation — is the line that separates civil from criminal.

These are the statutory maximum penalties. The sentence actually handed down by the tribunal correctionnel depends on the circumstances, criminal record, scale of the harm, and the defendant's conduct. A criminal lawyer is the appropriate professional to assess the realistic prospects in any specific case.

The limitation period (prescription) for abus de confiance is 6 years from the date on which the offence could have been identified in conditions that allow prosecution to be commenced. This is a critical point: the clock does not necessarily start from the date of the acts themselves, but from the point at which the victim could reasonably have become aware of them.

An absolute backstop of 12 years from the date of the acts applies regardless of when the discovery was made.

In practical terms, this means that an infringement committed several years ago may still be actionable if it was only recently uncovered. Do not assume time has run without first obtaining legal advice on the specific dates.

In company settings, abus de confiance rarely presents itself as an obvious, large-scale fraud from the outset. The cases we encounter most frequently involve:

• funds handed to an employee or manager to pay suppliers, used instead for personal expenses;
• a company bank card used outside the authorised purpose or without supporting documentation;
• equipment, stock or vehicles retained after a contract ends, without right;
• amounts collected on behalf of the company subsequently transferred to a personal account;
• deposits or rent collected by a mandated agent and not remitted to the rightful owner;
• confidential data, client files or commercially sensitive information provided for a specific purpose and then exploited privately.

One important point for international business owners operating in France: the offence requires that the asset was originally delivered with a defined purpose. A pure breach of contract — where services were not rendered or a payment was not made — does not automatically cross into criminal territory. The element of fraudulent intent is the decisive threshold. When in doubt about the correct characterisation, consulting a French criminal lawyer before filing avoids wasting time on a misdirected complaint.

From the files we handle, the most common obstacle to an effective complaint is not missing evidence — it is disorganised evidence. Documents exist but are scattered across email accounts, physical folders, and accounting software. The accounting reconstruction work before filing is simultaneously a document management task.

1. Preserve evidence immediately. Save bank statements, accounting journals, emails, contracts and screenshots without delay. Access to systems may be cut, inboxes deleted, accounts closed. This step cannot be undone once missed.

2. Reconstruct a precise timeline. Record every key date: delivery of funds or assets, agreed use, first detection of an anomaly, internal follow-up, confirmed date of discovery. This chronology will form the backbone of the file.

3. Quantify the loss with documentary support. Estimate the amount misappropriated, suspicious flows, indirect costs (additional regularisation, operating loss, time spent on reconstruction). A vague loss figure weakens the complaint; a sourced and itemised figure strengthens it.

4. Consult a criminal lawyer (avocat pénaliste) before filing. The precise legal qualification — abus de confiance, escroquerie (fraud), vol (theft), abus de biens sociaux (misuse of corporate assets) — determines the strategy. A criminal lawyer identifies risks, available routes, and deadlines. This step is strongly recommended before any formal filing.

5. File the complaint. Several routes exist: police station (commissariat), gendarmerie, or a registered letter to the procureur de la République at the competent tribunal judiciaire. In certain cases, an online complaint is available via service-public.fr. The complaint must state the claimant's identity, a detailed and dated account of the facts, the identity of the alleged perpetrator if known, the amount of the loss, and the supporting documents.

6. Monitor the procedure. After filing, the victim may join proceedings as a civil party (partie civile) to claim compensation. If the case is discontinued, appeal channels exist. Legal representation is advisable for these stages.

A chartered accountant is not a lawyer and does not conduct the criminal strategy. The contribution is complementary and typically comes upstream of or alongside the legal action.

An expert-comptable can help by:

• identifying abnormal entries in the accounting journals and general ledger;
• reconciling banking flows with the supporting documents produced;
• quantifying the financial loss in a structured, documented format;
• preparing a readable accounting file for the lawyer and, where relevant, for a court-appointed forensic accountant;
• reconstructing a coherent financial narrative when documents are scattered or partially missing.

In many files, the accounting contribution is technically straightforward but practically decisive: it puts the numbers in the right order, with the right dates, before the conflict becomes purely emotional or the traces are lost.

For further context on how an accountant and legal counsel work together, see our article on expert-comptable and avocat fiscaliste as complementary advisers.

Before filing, it is useful to test the file against four questions that an investigator or prosecutor will apply:

Was there a prior, voluntary delivery? The file must show that the funds or property were handed to the accused for a defined purpose. Without this, the complaint may not survive initial review.

Was the agreed use clearly established? A written contract, a mandate, an email exchange setting out the purpose, or a purchase order all serve this function. The clearer the agreed use, the more readable the qualification.

Is the gap between agreed and actual use documented? The case gains strength when accounting records, bank reconciliations, or communications clearly show the divergence between what should have happened and what actually happened.

Is the harm quantified? A complaint supported by a precise loss figure — backed by accounting records or a financial summary table — is significantly more credible than one that describes harm in general terms. Even a provisional figure, clearly labelled as such, is more useful than no figure at all.

Running this check before filing, ideally with both an accountant and a criminal lawyer reviewing the file independently, is the best way to avoid the most common preparation errors.

In a company context, abus de confiance may overlap — or be confused — with abus de biens sociaux (art. L.241-3 Code de commerce for SARLs, art. L.242-6 for SAs). These are distinct offences: abus de biens sociaux targets use of corporate assets by a director or officer for personal gain contrary to the company's interest. The qualification depends on who the alleged perpetrator is and the basis on which the funds were originally entrusted. This is precisely the nuance a criminal lawyer resolves, supported where needed by the accounting file.

• Police station (commissariat) or gendarmerie: attend in person; the filing is free and a receipt is issued. Officers are required to accept your complaint regardless of territorial jurisdiction.
• Letter to the procureur de la République: recommended for complex cases or facts spread across multiple jurisdictions. Send by registered post with acknowledgement of receipt to the procureur at the tribunal judiciaire for the location of the facts or the alleged perpetrator's domicile.
• Online complaint: available for certain offences via service-public.fr.
• Victim support: the 116 006 helpline (free, 7 days a week) provides guidance and referral to victim support services.