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uk Work & employment crises colleague complaint about me • formal complaint at work • hr says complaint filed • accused by coworker • grievance about my behaviour • disciplinary process started • allegation at work • bullying complaint at work • harassment complaint at work • told i'm being investigated • complaint made against me • called to hr meeting • asked for my statement at work • workplace investigation interview • worried about losing my job • told not to contact colleague • asked to attend disciplinary hearing • complaint escalated to formal

What to do if…
you are told a colleague has made a formal complaint about you

Short answer

Don’t contact the colleague who complained. Ask HR for a written summary of what’s alleged and which procedure is being used, then get support (union rep or suitable workplace companion) before you give a detailed response.

Do not do these things

  • Do not confront, message, “clear the air” with, or ask friends to pressure the colleague who complained.
  • Do not vent about it in work chats, Slack/Teams, email, or social media (even “anonymously”).
  • Do not delete, edit, or “tidy up” messages/files/notes that might be relevant (it can look like you’re hiding something).
  • Do not resign, accept blame, or sign a statement “just to make it go away” while you’re in shock.
  • Do not try to “gather intelligence” by questioning witnesses or comparing stories with coworkers.
  • Avoid covertly recording meetings. If you want an accurate record, ask for written minutes/notes, or ask permission to record (and follow your employer’s policy).

What to do now

  1. Get the basics in writing (today). Ask HR for:
    • a summary of what the complaint alleges (what conduct, roughly when/where)
    • whether this is being handled as a grievance (your colleague’s complaint) and/or a disciplinary matter (possible action against you)
    • the policy/procedure being used and the next steps
  2. Clarify what kind of meeting you’re being called to. Ask: “Is this an informal chat, an investigation meeting, a grievance meeting, or a disciplinary hearing?”
  3. Ask what HR needs from you and by when. For example: an interview, names of witnesses, or a written statement.
  4. Use your right to be accompanied where it applies.
    • If you’re invited to a grievance meeting or a disciplinary hearing that could result in a formal warning or other disciplinary action, you can make a reasonable request to be accompanied by a companion (for example, a trade union representative or a work colleague).
    • If it’s an investigation meeting, there is usually no statutory right to be accompanied, but you can still ask your employer to allow it as a reasonable adjustment to help you participate calmly.
  5. Request what you need to prepare (without demanding). Ask when you’ll receive the documents HR plans to rely on (for example, notes of allegations, relevant messages, witness summaries) and whether you can see them before any hearing.
  6. Write your own timeline while it’s fresh (private, factual, dated). Note:
    • what you’ve been told (who said what, when)
    • any relevant interactions/events (dates, locations, who was present)
    • what records might exist (messages, rotas, meeting invites, work outputs)
  7. Preserve relevant material safely. Keep relevant emails/messages/notes intact and in place on work systems. Don’t forward confidential information to personal accounts or devices. If you’re worried your access could be removed, ask HR how you’ll be able to see the evidence later through the process.
  8. Choose one calm support route. If you have a union, contact them promptly. If you do not, identify a trusted colleague who could accompany you where permitted, and a separate person outside work for emotional support.
  9. If you’re not thinking clearly, ask for a short pause. If you’re asked for an immediate statement, say you want to cooperate but need reasonable time to review what’s alleged and respond carefully.

What can wait

  • You do not need to craft a “perfect defence” right now—start with getting the allegation, the process, and the dates clear.
  • You do not need to decide whether to quit, counter-complain, or escalate externally until you know what’s actually being alleged and what procedure is being used.
  • You do not need to contact everyone who might “back you up” yet—focus on preserving facts and using the formal process.

Important reassurance

Being told there is a formal complaint is frightening, but it does not mean a decision has been made. A fair process should tell you what’s alleged and give you a chance to respond. Feeling shaky, angry, or ashamed in the first hours is a normal stress reaction—your job right now is to slow down and avoid irreversible moves.

Scope note

This is first-step guidance for the initial shock period. Later steps (how to frame a statement, what evidence matters, whether to seek specialist advice) depend heavily on the allegation and your workplace policy.

Important note

This is general information, not legal advice. Workplace processes vary by employer and sector. If you believe you’re at immediate risk of harm, or your health is deteriorating, seek urgent support.

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