Is Your Employee's Grievance AI-Generated - And Does It Matter

Something has changed in the character of formal grievances over the last two years, and most HR professionals and employment advisers who handle them regularly will have noticed it.

Grievance letters have got longer. They are better structured. They reference the Equality Act, the ACAS Code, specific case law, and the employer's own policies with a precision that would previously have suggested legal representation. The language is formal and consistent in a way that feels slightly removed from the person who is supposedly writing it. And the grounds are numerous - not the one or two core issues that most employees are really concerned about, but eight or ten carefully enumerated points, each with its own sub-paragraphs.

The most likely explanation, in many cases, is that the grievance was drafted with the assistance of an AI tool. ChatGPT, Claude, and similar models are capable of producing a detailed, well-structured grievance letter from a relatively brief prompt. An employee who tells an AI tool what happened, what they are unhappy about, and that they want to raise a formal grievance will often receive back a document that looks considerably more comprehensive and legally sophisticated than anything they would have produced themselves.

This is not inherently a problem. But it does raise some questions that employers and HR professionals need to think about.

Does it change how you should handle the grievance

The short answer is: not fundamentally, but it changes some things.

The legal framework for handling grievances does not distinguish between a letter drafted by the employee, a letter drafted by their solicitor, and a letter drafted with AI assistance. The employer's obligations are the same regardless of how the document was produced. The ACAS Code applies. The employee's right to be accompanied applies. The requirement for a fair investigation and a reasoned outcome applies.

What changes is the reading of the document and the conduct of the hearing.

An AI-generated grievance letter often contains more grounds than the employee actually cares about. The tool has been asked to be comprehensive, so it has been comprehensive - enumerating every possible angle, including some that the employee may not have intended to raise or may not fully understand. Not every ground in a detailed grievance letter is a genuine priority for the person who submitted it.

This matters for how you approach the hearing. An employer who treats every enumerated ground as equally weighted and equally contested may end up with a hearing that runs far longer than it needs to and an outcome document that is disproportionately detailed. The better approach is to use the hearing to understand what the employee actually wants to resolve, what matters most to them, and where the real points of dispute lie. The written document is the starting point for that conversation, not the final word on what the grievance is really about.

The comprehensiveness problem

There is a related issue on the employer's side. When a grievance letter is unusually comprehensive - when it references case law, anticipates procedural objections, and frames issues in legal terminology - there is sometimes a tendency to respond in kind. To involve lawyers early. To treat the process as adversarial from the outset. To prepare for tribunal before the internal process has even begun.

This is usually the wrong response, for a simple reason. The vast majority of formal grievances, including those that look legally sophisticated, do not end up at tribunal. They end up resolved, settled, or withdrawn - often because the employee wanted to be heard and taken seriously, and once that happened, the formal process became less necessary.

An AI-drafted grievance letter that looks like it was written by a solicitor may have been written by an employee who is upset, feels unheard, and has found a tool that helps them articulate what they cannot quite express themselves. Treating that employee as an adversary from day one is likely to make resolution harder, not easier.

The right response to a comprehensive grievance, however it was produced, is a thorough, fair, and genuine process. Investigate properly. Hear the employee properly. Issue an outcome that addresses what they have raised with real reasoning. Do not be intimidated by the length or legal framing of the letter into either dismissing the grievance defensively or escalating unnecessarily.

What it means for the investigation

Where a grievance raises numerous grounds, some of which appear to be AI-generated boilerplate rather than genuinely felt concerns, the investigation needs to be proportionate. Not every enumerated point requires the same level of scrutiny. The investigator or chair needs to identify the substantive core of the grievance - what the employee is really saying happened, what they want to change, and what they need to feel that the matter has been properly addressed - and focus energy there.

This is not the same as ignoring grounds that have been formally raised. If a ground appears in the grievance letter, it needs to be addressed in the outcome. But addressing it proportionately - a paragraph of reasoning rather than a full sub-investigation - is appropriate where the ground is peripheral or clearly formulaic.

The hearing itself is the best tool for separating the genuine concerns from the comprehensive ones. An employee who has submitted a twelve-ground grievance drafted with AI assistance will usually, when asked to explain in their own words what they most want to resolve, identify two or three things that really matter to them. The rest is framing. The hearing chair who understands this can run a more focused, more productive, and ultimately more resolvable process.

What it means for the outcome letter

The outcome letter needs to address every ground raised, but it does not need to address them all at equal length. Where a ground is peripheral, formulaic, or clearly not sustained on the evidence, a concise and reasoned dismissal is sufficient. Where a ground is substantive, contested, or legally sensitive, the reasoning needs to be more detailed.

The risk with AI-generated grievances is that the employer, seeing a comprehensive and legally framed document, responds with an outcome letter that tries to match it in length and formality. Longer is not always better. An outcome letter that is clear, well-reasoned, and proportionate is more useful than one that is exhaustive but hard to follow.

A broader point about employee access to information

It is worth stepping back for a moment and acknowledging what the rise of AI-assisted grievances actually represents. Employees have always had a right to raise grievances. What has changed is the ease with which they can do so in a way that looks sophisticated and legally informed, regardless of whether they have legal representation or detailed knowledge of employment law themselves.

This is, on balance, a good thing. The asymmetry of knowledge between employers and employees in formal HR processes has historically favoured employers. Managers and HR teams who know the process well have an advantage over employees navigating it for the first time. AI tools reduce that asymmetry. They give employees access to a framework for articulating their concerns that previously required either legal representation or considerable personal research.

The implication for employers is not to try to match that sophistication with greater defensiveness. It is to run better processes. An employer who investigates properly, hears the employee genuinely, and issues a well-reasoned outcome has nothing to fear from a comprehensively drafted grievance, however it was produced. The quality of the process is the protection.

An employer who responds to a detailed grievance by circling the wagons, involving lawyers prematurely, and treating the process as a threat to be managed rather than a concern to be addressed is more likely to end up at tribunal, not less - regardless of how the original letter was written.