French Labour Law

Internal Investigations into Workplace Harassment in France: A Complete Guide for Employers

DAIRIA Law · 2026-09-15 · 10 min

Internal Investigations into Workplace Harassment in France: A Complete Guide for Employers

Moral harassment in the workplace (harcèlement moral) represents a major challenge for employers. When faced with a complaint or a report, conducting a rigorous internal investigation becomes imperative to protect both the company and its employees. This process, governed by the French Labour Code, requires method and professionalism to ensure fairness and legal compliance.

Moral harassment is defined by Article L.1152-1 of the French Labour Code as “repeated acts whose purpose or effect is a deterioration of working conditions liable to infringe the employee’s rights and dignity, to impair their physical or mental health, or to compromise their professional future.”

This definition encompasses several essential constituent elements: the repetition of the acts, the intention to harm or the harmful effect, and the impact on the victim. Employers must understand these nuances in order to properly assess the situations reported.

Key point: Article L.1152-4 of the French Labour Code imposes on the employer a duty of prevention and protection against moral harassment. In the event of a breach, the employer’s liability may be engaged.

The Employer’s Obligations Regarding Investigations

The employer has a legal duty of diligence as soon as it becomes aware of facts potentially constituting moral harassment. This obligation derives from Article L.1152-4 of the French Labour Code and from the employer’s obligation to ensure the safety of its employees (obligation de sécurité – a duty of results).

Responsiveness and Neutrality

The investigation must be carried out as promptly as possible following the report. Any unjustified delay may be interpreted as negligence on the employer’s part. Absolute neutrality is a prerequisite: the investigator must have no connection with the parties concerned.

Preserving Confidentiality

The confidentiality of the investigation protects all parties involved. It prevents the spread of rumours and preserves the presumption of innocence of the alleged harasser, while also protecting the alleged victim from potential retaliation.

Methodology of the Internal Investigation

Forming the Investigation Team

The investigation team must be composed of competent and impartial individuals. Depending on the size of the company, it may include a human resources representative, an uninvolved line manager, or may call upon an external specialist investigator.

Practical tip: Appointing a single point of contact to coordinate the investigation ensures consistency in the process and prevents the dispersal of sensitive information.

Planning and Documentation

Each stage of the investigation must be meticulously documented. This traceability makes it possible to justify the steps taken in the event of subsequent litigation and demonstrates the seriousness of the employer’s approach.

Conducting Interviews and Gathering Evidence

Interview with the Complainant

The interview with the person reporting the harassment is the starting point of the investigation. It is important to obtain a detailed account: dates, places, witnesses present, the exact nature of the alleged facts, and the impact on the person.

The investigator must adopt a considerate attitude while remaining objective. It is essential not to form premature judgements and to explore all aspects of the situation described.

Interviewing the Accused Person

Respect for the adversarial principle (principe du contradictoire) requires that the accused person’s version be heard. This interview must be conducted with the same guarantees of neutrality and respect. The person must be able to explain themselves regarding the alleged facts and provide their own responses.

Caution: In accordance with Article L.1152-2 of the French Labour Code, no sanction may be taken against an employee for having reported or testified to acts of moral harassment.

Analysing Testimony and Evidence

Gathering testimony from colleagues is often a decisive element. These witnesses can confirm or refute the allegations and provide additional insight into the working atmosphere and interpersonal relationships.

Written Documentation and Material Evidence

The investigation must also address material evidence: emails, messages, internal memos, performance reviews, and repeated sick leave. These objective elements may corroborate or contradict the testimony gathered.

Analysing the professional history of those involved, their career progression, and any prior incidents may also shed light on the situation from a different angle.

Drafting the Investigation Report

The investigation report must present all the elements gathered in a structured and objective manner. It generally includes a summary of the alleged facts, a record of the interviews conducted, an analysis of the evidence collected, and the reasoned conclusions of the investigation.

Depending on the conclusions, the report may recommend various measures: closing the matter with no further action if the facts are not established, disciplinary measures if the harassment is proven, or corrective actions to improve the working environment.

Important reminder: Under Article L.1152-3 of the French Labour Code, moral harassment is subject to disciplinary sanction and may justify dismissal for gross misconduct (faute grave).

Post-Investigation Follow-Up and Prevention

The closure of the investigation does not mark the end of the process. Careful follow-up of the situation is required to verify the effectiveness of the measures taken and to prevent any recurrence or retaliation.

Implementing Preventive Measures

The investigation may reveal organisational dysfunctions conducive to the emergence of harassment situations. The employer must then implement corrective actions: manager training, improved internal communication, and strengthened reporting procedures.

Raising awareness among all staff about moral harassment also helps to create a more respectful working environment and to prevent new problematic situations.

In the event of a poorly conducted investigation or a failure to investigate, the employer is exposed to serious consequences: a finding of breach of its safety obligation, substantial damages, and reputational harm to the company.

Case law is particularly vigilant regarding the employer’s diligence when faced with reports of moral harassment. A rushed or biased investigation may lead to a conviction even if the harassment itself is not established.

Legal expertise: Given the complexity of internal investigations into moral harassment, the support of employment law professionals often proves indispensable to secure the process and protect the company.

Conducting an internal investigation into moral harassment requires legal expertise, a rigorous method, and scrupulous respect for the rights of all parties. DAIRIA Avocats supports you throughout this sensitive process, from setting up the investigation procedure to following up on corrective measures. Contact our employment law experts to secure your approach and effectively protect your company and your employees.

The Essential Clauses of the Employment Contract

The employment contract, whether open-ended (CDI) or fixed-term (CDD), forms the foundation of the employment relationship. While a full-time CDI may be concluded without a written document (unless a collective bargaining agreement provides otherwise), drafting a written contract is strongly recommended to secure the relationship.

The following clauses deserve particular attention:

  • Job title and classification: they determine the applicable minimum collectively agreed salary and the employee’s rights. They must correspond to the duties actually performed (Article L.1221-1 of the French Labour Code).
  • Remuneration: set out the base salary, any contractual bonuses, and benefits in kind. Any change to remuneration constitutes a modification of the contract requiring the employee’s consent.
  • The probationary period (période d’essai): its duration is governed by Article L.1221-19 (CDI) and may not exceed 2 months for manual/clerical workers, 3 months for supervisors/technicians, and 4 months for managerial staff (cadres). A single renewal is possible if provided for by the collective bargaining agreement and mentioned in the contract.
  • The mobility clause (clause de mobilité): it must precisely define the geographical area concerned. The Court of Cassation requires that this area be determined and not confer discretionary power on the employer.
  • The non-competition clause (clause de non-concurrence): to be valid, it must cumulatively be limited in time, in space, to a specific activity, and include financial consideration (Cass. soc., 10 July 2002, no. 00-45.135).

For assistance in drafting your contracts, consult our employment law experts.

The Fixed-Term Contract (CDD): Conditions of Use and Reclassification Risks

The use of a fixed-term contract is strictly governed by Articles L.1242-1 et seq. of the French Labour Code. A CDD may only be concluded for the performance of a specific and temporary task, and may neither have the purpose nor the effect of permanently filling a position linked to the company’s normal and permanent activity.

The authorised grounds for use are listed exhaustively:

  • Replacement of an absent employee or one whose contract is suspended
  • Temporary increase in activity
  • Seasonal employment or customary employment (emploi d’usage)
  • Replacement pending the arrival of an employee on a CDI
  • Replacement of a company or business head

The maximum duration, including renewals, is in principle 18 months (subject to derogations under collective agreements). The waiting period (délai de carence) between two CDDs on the same position is equal to one-third of the initial contract’s duration (or half if the CDD is shorter than 14 days).

Failure to comply with these conditions exposes the employer to reclassification as a CDI (Article L.1245-1) and to the payment of an indemnity of no less than one month’s salary (Article L.1245-2). See our dismissal guide for the consequences of early termination.

Checklist: Securing the Drafting of an Employment Contract

  • ✅ Identify the appropriate type of contract (CDI, CDD, apprenticeship contract, professional training contract)
  • ✅ State the identity of the parties, the hire date, the place of work, and the job classification
  • ✅ Specify the applicable collective bargaining agreement and the corresponding classification
  • ✅ Detail the remuneration (base salary, bonuses, benefits in kind)
  • ✅ Precisely draft the probationary period clause (duration, renewal conditions)
  • ✅ Verify the validity of restrictive clauses (non-competition, mobility, exclusivity)
  • ✅ For a CDD: state the precise ground for use, the duration or term, and the name of the replaced employee where applicable
  • ✅ Arrange for the delivery of mandatory documents: DPAE (pre-hire declaration) completed, provident/health insurance information notice
  • ✅ Have the contract signed before the start of employment (essential for a CDD, recommended for a CDI)

Frequently Asked Questions

What are the limitation periods in French employment law?

The main limitation periods are: 1 year to challenge a dismissal, 2 years for actions relating to the performance of the employment contract, 3 years for claims for payment of salary, and 5 years for moral harassment or discrimination (Article L.1471-1 of the French Labour Code).

How does a hearing before the labour court (conseil de prud’hommes) proceed?

Proceedings before the labour court begin with a conciliation phase before the conciliation and orientation board (bureau de conciliation et d’orientation, BCO). In the absence of an agreement, the case is referred to the judgment board (bureau de jugement). The procedure is oral and the parties may be assisted or represented by a lawyer, a union advocate, or a spouse.

Can the employer unilaterally change working conditions?

The employer may change working conditions (non-essential elements) within the scope of its managerial authority. However, any change to an essential element of the contract (remuneration, job classification, working hours, place of work beyond the geographical area) constitutes a modification of the contract requiring the employee’s consent (Cass. soc., 10 October 2000, no. 98-41.358).

What documents must the employer provide at the end of the contract?

The employer must provide the employee with: the work certificate (certificat de travail, Article L.1234-19), the France Travail certificate (Article R.1234-9), the final settlement receipt (reçu pour solde de tout compte, Article L.1234-20), and a summary of all employee savings scheme amounts. Failure to provide these documents causes harm giving rise to damages.

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