Handled well, a disciplinary process protects your business and treats people fairly. Handled badly, it burns time, damages trust, and creates tribunal risk you did not need.
I am Natasha Butler, founder of HRPPL in Spalding. I help small employers run disciplinaries end to end or coach managers so the outcome sticks. Below is a clear, ACAS-aligned route you can follow today, with scripts and guardrails that keep you safe.
If you want real examples of what good looks like, see our disciplinary case study where we turned a shaky start into a fair, defensible outcome.
Start with triage and proportionality
Pause. What exactly is alleged, and how serious is it on first sight? Your decision now sets the tone.
- Is anyone at risk right now, or could evidence be interfered with? If yes, consider suspension on full pay as a neutral act. Say so clearly.
- If risk is low, keep the person working while you fact find. Move shifts, restrict systems, or separate staff if needed.
Script for a suspension call: “I am suspending you today on full pay while we look into an allegation. This is not a disciplinary decision. We will write to confirm and aim to update you within [X] days.”
Follow with a short suspension letter the same day or next working day, naming the manager contact and expected timescales.
Investigate fairly and keep notes
Appoint someone impartial to gather facts. The aim is to decide whether there is a case to answer, not to prove guilt.
- Collect documents, CCTV, system logs, and witness statements.
- Offer the employee an investigation meeting to give their account.
- Keep an audit trail: what you looked at, why, and what you found.
Close the investigation with a short report that sets out the allegation, evidence, and recommendation: no case to answer, informal action, or move to a disciplinary hearing.
Invite letter essentials
If there is a case to answer, send a disciplinary invite that includes:
- The allegation in clear terms, the potential level of outcome up to and including dismissal where relevant.
- The date, time, place, and the right to be accompanied by a colleague or certified trade union representative.
- The evidence pack you will rely on.
- The manager chairing the hearing and the note taker.
- How to ask for reasonable adjustments or more time.
Give reasonable notice. Two to five working days is typical for most cases. For complex matters, allow more.
Run the hearing with calm structure
Your goal is a fair, well recorded discussion, not an ambush.
- Open: introduce everyone, confirm the right to be accompanied, and the allegation.
- Process: the chair sets the questions. Let the employee respond fully and present evidence or witnesses where reasonable.
- Clarify: probe inconsistencies politely and test credibility.
- Adjourn: take a break to reflect, check policy, and phone HR if needed.
Keep tone neutral. Do not decide the outcome in the room. If further checks are needed, explain and reconvene.
Decide an outcome that fits
Use your disciplinary policy and ACAS guidance. Consider conduct history, consistency with similar cases, mitigation, length of service, and any live warnings.
Typical outcomes:
- No action or informal coaching
- First written warning, usually 6 to 12 months
- Final written warning, usually 12 to 18 months
- Dismissal with notice for repeated misconduct
- Summary dismissal for gross misconduct where trust is irreparably broken
Confirm the decision in writing with reasons, the live period of any warning, required improvement, and the right to appeal within a set timeframe.
Appeals keep you safe
Appeals should be heard by someone not involved so far, senior where possible. An appeal can review the process, the decision, or new evidence. The appeal outcome should confirm, reduce, or overturn the sanction with reasons.
Reasonable timescales that work
A fair rule of thumb for straightforward cases is one to two weeks from allegation to outcome. Complex cases can take several weeks. What matters is momentum, clear updates, and no unnecessary delay. If you need more time, say so in writing and give a new target date.
Record keeping without the clutter
Keep investigation notes, letters, evidence, minutes, outcome, and appeal securely for the retention period in your policy. Note the expiry date of any warning and do not rely on expired warnings for future sanctions. Systems like Breathe HR can help keep records tidy and access controlled.
Common pitfalls to avoid
- Knee-jerk suspension without written confirmation or updates
- Vague allegations and thin evidence packs
- Rushing the invite, skipping the right to be accompanied
- Deciding the outcome mid-hearing
- Jumping from zero to dismissal without considering a warning
- Inconsistent treatment compared to similar cases
- Poor notes and missing letters
If you are unsure, get advice early. A 10 minute call can remove a month of pain.
Practical scripts managers can use
- Investigation invite: “We need to understand events on [date]. This is a fact-finding meeting, not a disciplinary. You can bring a colleague if you wish.”
- Hearing open: “Today’s hearing concerns [allegation]. Possible outcomes include [warning level or dismissal]. We will listen to your account and review the evidence.”
- Outcome explain: “Having considered the evidence and your explanations, our decision is [outcome] because [short reasons]. You have the right to appeal within [X] days.”
How HRPPL supports a fair, defensible process
HRPPL can run the case end to end or stand beside your manager with letters, questions, and notes that hold up at tribunal. See our case study on a disciplinary done right for a feel of the approach, and if you want to get ahead of issues, our outsourced HR retainer gives you unlimited phone and email advice so problems stay small.
If you are unsure where your paperwork stands, start with our quick HR Health Check. It flags gaps in policies and records in under two minutes.
FAQ
- What are the steps of a disciplinary procedure? Triage and decide on suspension, investigate impartially, issue a clear invite with evidence, hold a fair hearing, adjourn to decide, confirm the outcome in writing, and offer an appeal.
- How long does it take? Straightforward cases often complete within one to two weeks. Complex matters can take longer. Keep the employee updated if timelines move.
- Is a disciplinary procedure legally required? You must act fairly and follow the ACAS Code of Practice. Having and following a clear procedure is the safest way to meet that duty.
- Can I refuse a disciplinary meeting? Employees can ask to reschedule for good reason or to secure a companion, but refusing to engage without reason can become a conduct issue. Employers should act reasonably.
- Can I lose my job for a disciplinary? Yes, for gross misconduct or repeated misconduct after warnings, provided a fair process is followed and dismissal is within the range of reasonable responses.
- Does a disciplinary go on your record? Yes, for the live period stated in the outcome letter. Once expired, it should not usually be relied on for future sanctions.
- Is it better to resign before a hearing? Resigning stops the process for that employment but does not erase facts and can complicate references or claims. It is usually better to attend and present your case.
- What is classed as a sackable offence? Gross misconduct such as theft, violence, serious harassment, severe safety breaches, or serious dishonesty can justify summary dismissal after a fair process. Your policy should give examples.
Summary and next step
A calm, structured disciplinary protects people, process, and your business. Suspend only when needed, investigate properly, write clear letters, run a fair hearing, and decide proportionately. Keep good notes and offer a real appeal.
If you want a steady hand on a live case or to train managers so they get it right first time, HRPPL can help. Read how we handled a challenging disciplinary, or start reducing risk across the board with ongoing retainer support that gives you senior HR advice when you need it.
Internal links:
- Explore ongoing outsourced HR support: https://hrppl.co.uk/services/
- Take the free HR Health Check: https://hrppl.co.uk/hr-health-check/






