The Acas Code of Practice on disciplinary and grievance procedures sets out the minimum fair process: investigate, tell the person in writing, hold a meeting, let them be accompanied, decide, and offer an appeal. It is not law in itself, but an employment tribunal takes it into account and can raise or cut an award by up to 25% when either side unreasonably fails to follow it.
Read the guide: Disciplinary procedures
A short definition for UK employers, not legal advice. Checked 8 November 2026.