No / Background/Aims This article investigates the representation of black, Asian and minority ethnic staff in NHS disciplinary proceedings. Methods The study involved an in-depth knowledge review and analysis of literature on the representation of black, Asian and minority ethnic staff in NHS disciplinary proceedings from 2008 to 2017, as well as semi-structured interviews with 15 key stakeholders. Participants were stakeholders from both primary and secondary care and included equality and diversity leads, human resource professionals, NHS service managers, representatives of trade unions and health professional regulatory council representatives. Findings The knowledge review indicates that to date, black, Asian and minority ethnic staff are disproportionately represented in NHS disciplinary proceedings. Evidence gathered demonstrates the continuation of inappropriate individual disciplinary action and failure to address organisational shortcomings against black, Asian and minority ethnic members of staff. Conclusions Overall, six factors were identified as underpinning the disproportionate representation of black minority ethnic staff in disciplinaries: closed culture and climate; subjective attitudes and behaviour; inconclusive disciplinary data; unfair decision making; poor disciplinary support; and disciplinary policy misapplication.