Mobbing: how it is proved, and when the evidence holds up in court.

A memo never arrives saying «we have decided to push you out». Other things arrive instead: the desk moved to the far end of the corridor, the meetings you are no longer called to, the projects handed to a colleague without explanation, the disciplinary charge for arriving ten minutes late after years in which nobody watched the clock. Then leave refused three times in a row, the badge that no longer opens a door, the group email in which your name is simply missing. Taken one at a time, these are facts anyone can explain away as ordinary business organisation. Lined up across twelve months, they tell a different story.

The problem is that this line-up has to be proved in a courtroom. Many mobbing claims are not lost because the facts did not happen: they are lost because they reach the judge as a subjective account, with no dates, no documents, no witnesses willing to confirm them. This guide explains what case law actually requires, how to build a file that holds, which technical distinctions change the outcome of a claim and which mistakes - some of them very common - overturn a well-founded position. No promise of results: only the method by which you move from «I feel persecuted» to «here is what happened, when, and who confirms it».

Mobbing is not a criminal offence in itself: which track the claim runs on

The first thing to clarify, because it shapes everything else: under Italian law there is no criminal offence called «mobbing», nor any single statute defining it. Protection stems from an article of the 1942 Civil Code, art. 2087 c.c. (Italian Civil Code), which requires the employer to adopt the measures needed to protect workers' physical integrity and moral personality. It is a liability of a contractual nature: it arises from the employment contract, and this has two very concrete practical consequences - the limitation period is ten years rather than five, and the allocation of the burden of proof is more favourable to the worker than in an ordinary civil tort.

Around this axis revolve other provisions that often enter the same claim: art. 2103 c.c. on job duties, where there has been demotion; art. 15 of the Statuto dei Lavoratori (legge 300/1970) where the conduct is discriminatory or retaliatory in nature; D.Lgs. 81/2008, which requires work-related stress to be assessed in the DVR, the employer's risk assessment document; D.Lgs. 24/2023 on whistleblowing, if the harassment began after a report. And in some cases a criminal front opens as well: threats, insult and defamation, negligent personal injury for psychological harm, and - where the conduct takes on the features of individual persecution - art. 612-bis c.p., which case law has applied to workplace settings too. We have written a dedicated guide on how that aspect is documented: evidence of stalking and a criminal complaint under art. 612-bis.

Why does this matter from the outset? Because each track has different evidentiary rules, deadlines and recipients. A file built «in general terms» risks being enough for none of them. A file built with your lawyer, knowing where it is headed, is another matter entirely.

The five elements the judge looks for

The Cassazione has outlined with reasonable consistency the elements that must be present for mobbing to be established. In short:

1. A plurality of hostile acts, not an isolated episode: measures, behaviours and omissions that repeat.
2. Systematic character and duration over time: the actions must form a campaign, not a random sequence of frictions. Technical reports often refer to an indicative quantitative criterion - conduct repeated at least monthly over a period of several months - which is not a rule of law but helps distinguish ordinary workplace conflict from harassment.
3. The harmful event: a concrete injury to the worker's health, personality or dignity. Without documented harm there is no compensation, however unpleasant the facts may have been.
4. The causal link between the conduct and the harm: this is the most technical part of the contest, and it is the territory of the medico-legal expert.
5. The persecutory intent, that is the thread tying the episodes into a design aimed at marginalising or driving out the worker. It is the hardest element to prove and the one on which most claims fail: direct evidence rarely exists, and it is almost always inferred from serious, precise and consistent circumstantial evidence.

In practical terms: you do not need to show that the company was rude. You need to show a sequence - dated, documented, coherent - and, alongside it, the concrete signs of what that sequence produced. The rest is impression, and impressions do not make it into a judgment.

Mobbing, straining or demotion: the classification changes the strategy

Many claims are framed as mobbing when a different route would be more solid. Three distinctions are worth making:

• Straining: the repetition typical of mobbing is missing, but the worker is placed in a state of forced stress with lasting effects - the classic hollowing-out of job duties decided once and maintained for years. The Cassazione has recognised it as a milder form, still compensable under art. 2087 c.c. It does not require proof of a unifying persecutory intent, which is why it is often the winning classification when the pattern of episodes is discontinuous.
• Demotion (art. 2103 c.c.): this is a self-standing breach of contract. It is proved with documents, not with witnesses talking about the atmosphere in the office - job descriptions, service orders, organisation charts, targets assigned before and after, contractual grading level under the CCNL. It is the «easiest» part of the file to prove, and it is worth keeping it separate.
• Organisational conflict: a manager who is aggressive with everyone, a reorganisation that penalised an entire department, mutual tension. Unpleasant, but typically not compensable as mobbing. An honest professional will tell you so before you open litigation that lasts for years.

A recurring mistake: staking everything on mobbing and seeing the claim dismissed outright. Pleading straining and demotion in the alternative - supported by different documentary evidence - is almost always the more prudent procedural choice. That decision rests with your lawyer: our job is to supply material that holds up on all three levels.

The evidence that counts (and the order in which to collect it)

The file is built from the day you realise something is wrong, not the day you decide to sue. In order of priority:

1. The event diary. For each episode: date and time, place, what happened in factual lines (no adjectives), who was present, what consequence it produced, and the reference to the attached document. It is the index of the file. Fill it in straight away - not from memory months later - and give it a certain date, for example by periodically sending yourself the file via PEC or lodging it with your lawyer.
2. The company documentation concerning you: emails received and sent, service orders, disciplinary charges and the related replies, performance reviews, shift rosters, badge and attendance records, holiday and leave requests with the relevant refusals, organisation charts. They are the backbone of proving demotion.
3. Digital evidence properly preserved. A screenshot is easily challenged as altered. Where a chat or an email is central, you need a forensic copy with hash calculation and preservation of the metadata, carried out by someone who knows how - this is the domain of digital forensics. Always keep the original, not just the export.
4. Recordings of conversations you take part in. Recording a conversation you are party to - in person or by telephone - is lawful, and the recording may be used as documentary evidence where it serves to assert a right in court. What remains prohibited is capturing conversations between third parties in private dwellings (art. 615-bis c.p.) and any dissemination outside the proceedings.
5. Formal reports already made: to the employer, to the RSU or the union, to the occupational physician, to the RSPP, to the labour inspectorate. They carry double value - they date the facts and they show that the company knew, which is decisive for liability under art. 2087 c.c.

Witnesses and damage to health: the two weakest points

These are the two heads on which the majority of claims are decided, and they are also the two that workers attend to least.

Witnesses. Colleagues have seen everything and almost none of them want to testify: they fear retaliation, and that fear is far from irrational. This is why it pays to work on it early - identifying who was present episode by episode, checking who has left the company (former employees are generally far more willing) and gathering written statements from people with knowledge of the facts in good time. It is an activity an authorised investigation agency carries out within its own remit, and it is worth far more if it happens before memories fade.

The harm. It must be documented from day one and by healthcare professionals, not reconstructed after the fact. A continuous record is needed: general practitioner, psychiatrist or psychologist, any therapy and sickness certificates, and - where the picture warrants it - a party-appointed medico-legal report that expressly addresses the causal link with the working environment. It is also worth discussing with your own doctor whether to file a claim with INAIL for an occupational illness of a psychological nature: recognition is not automatic and is assessed case by case, but the investigation alone produces technical documentation of considerable weight. Finally, record what has changed outside work - sleep, habits, family life: it is the part of the harm a judge struggles to see if nobody shows it to them.

What not to do: the mistakes that overturn a claim

Evidence gathered badly is not merely useless: it can become the other side's best argument and, in some cases, cost you your job. With the caveat that every situation must be assessed with your own lawyer:

• Do not take confidential company documents away «just in case». Case law allows a worker to produce in court company documents that are strictly necessary to defend a right of their own, but the scope is narrow: taking entire archives, client data or information covered by confidentiality exposes you to breach of the duty of loyalty (art. 2105 c.c.) and to dismissal for just cause which, on the merits, often stands.
• No hidden cameras or recorders capturing third parties in the office or in the changing rooms. The criminal risk is real and the evidence, besides being unusable, backfires.
• Never spyware or GPS trackers on the devices or the car of a superior or a colleague. It is the single mistake that turns an injured party into a suspect: we have written about it in GPS tracker on a car: when it is a crime.
• Do not post anything on social media or in group chats. Your manager's name, screenshots, venting: they feed a parallel defamation claim and shift the case onto your conduct instead of the company's.
• Do not resign on impulse. Resigning weakens your position from an evidentiary standpoint and complicates matters; there are technical routes - such as resignation for just cause - but they must be assessed beforehand with an employment lawyer, not afterwards.
• Do not let the deadlines pass. Challenges to disciplinary measures, transfers and dismissals are subject to short time bars, independent of the ten-year limitation period that applies to the damages claim.

The role of an authorised investigation agency

An agency holding a prefectural licence under art. 134 TULPS does not replace the lawyer and does not decide the litigation strategy: it builds the evidentiary support that counsel will use. In mobbing cases the typical activity includes the documented chronological reconstruction of the episodes starting from the worker's own material, the search for and collection of statements from people with knowledge of the facts - including former employees, often the decisive resource - the forensic preservation of emails, chats and files with a chain of custody, open-source checks supporting the context and, when the matter moves to the criminal front, defensive investigations under artt. 327-bis and 391-bis c.p.p. instructed by defence counsel. The end product is an orderly investigation report on harassing conduct in the workplace that can be used in court, not a dossier of impressions.

The other side of the coin should be stated too, honestly. The same activity serves a company facing an instrumental mobbing allegation - not uncommon in the wake of a disciplinary procedure or a contested dismissal - to reconstruct what actually happened, verify the consistency of the episodes complained of and document the organisational measures actually adopted, including in support of the reporting and whistleblowing management system. Our job is to document reality, in whichever direction it leads: that is why a technical report carries weight before a judge. Some anonymised examples are in the publishable cases; an overview of fees is on the page about how much a private investigator costs.

Sesto San Giovanni, North Milan and Brianza: a first confidential meeting

Arcadia Company's operational office is in Sesto San Giovanni, at Piazza Don Mapelli 60, at the heart of an area with a very high concentration of industry and services: a location that lets us act quickly across Milano and the whole northern belt - Cinisello Balsamo, Cologno Monzese, Bresso, Cusano Milanino - and across the province of Monza e Brianza, with operations extending throughout Italy.

Every assignment begins with a confidential meeting, protected by professional secrecy, in which we assess together what can be documented and what cannot, which legal classification really holds and whether the case has genuine evidentiary viability: if the answer is that the material is not enough, we tell you before we start, not after months of work. We process data in compliance with Regolamento UE 2016/679 (GDPR) and we work to an ISO 9001 certified method. If you are going through a situation of this kind, request a confidential analysis: the preliminary assessment comes with no commitment.