Defined term

“complainant”

Defined in 15 Acts, 58 statutory instruments and 1 EU-derived instrument.

  1. The Advocacy Services and Representations Procedure (Children) (Amendment) Regulations 2004 SI
  2. Anti-social Behaviour Act 2003 Act 2 definitions
  3. The Armed Forces Commissioner (Service Complaints Investigations) Regulations 2026 SI
  4. The Armed Forces (Court Martial) Rules 2009 SI
  5. The Armed Forces (Service Civilian Court) Rules 2009 SI
  6. The Armed Forces (Service Complaints and Financial Assistance) Act 2015 (Transitional and Savings Provisions) Regulations 2015 SI
  7. The Armed Forces (Summary Appeal Court) Rules 2009 SI
  8. The Authorised Investigators (Complaints and Misconduct) Regulations 2026 SI
  9. The Business Improvement Districts (England) Regulations 2004 SI
  10. The Business Improvement Districts (Property Owners) (England) Regulations 2014 SI
  11. The Certification of Enforcement Agents Regulations 2014 SI
  12. The Children Act 1989 Representations Procedure (England) Regulations 2006 SI
  13. The Civil Procedure Rules 1998 SI
  14. The Clergy Discipline Appeal Rules 2005 SI
  15. The Clergy Discipline Rules 2005 SI
  16. The Court Martial Appeal Court Rules 2009 SI
  17. The Criminal Procedure Rules 2025 SI
  18. The Elected Local Policing Bodies (Complaints and Misconduct) Regulations 2012 SI
  19. Employment Tribunals Act 1996 Act
  20. The Energy Supply Company Administration Rules 2013 SI
  21. Enterprise Act 2016 Act 2 definitions
  22. The Family Health Services Appeal Authority (Primary Care Act) Regulations 2001 SI
  23. The Food Crime Officers (Complaints and Misconduct) Regulations 2025 SI
  24. Freedom of Information Act 2000 Act
  25. The Gangmasters and Labour Abuse Authority (Complaints and Misconduct) Regulations 2017 SI
  26. The Gas and Electricity (Consumer Complaints Handling Standards) Regulations 2008 SI
  27. The General Osteopathic Council (Health Committee) (Procedure) Rules Order of Council 2000 SI
  28. The General Osteopathic Council (Professional Conduct Committee) (Procedure) Rules Order of Council 2000 SI
  29. The Health and Safety (Consultation with Employees) Regulations 1996 SI
  30. The Health Professions Council (Conduct and Competence Committee) (Procedure) Rules Order of Council 2003 SI
  31. The Health Professions Council (Health Committee) (Procedure) Rules Order of Council 2003 SI
  32. The Health Professions Council (Investigating Committee) Procedure Rules Order of Council 2003 SI
  33. The High Hedges (Appeals) (England) Regulations 2005 SI
  34. Higher Education Act 2004 Act
  35. Higher Education and Research Act 2017 Act
  36. The Higher-Risk Buildings (Keeping and Provision of Information etc.) (England) Regulations 2024 SI
  37. Highways Act 1980 Act
  38. The Human Medicines Regulations 2012 SI
  39. The Independent Police Complaints Commission (Complaints and Misconduct) (Contractors) Regulations 2015 SI
  40. The Investigatory Powers Tribunal Rules 2000 SI
  41. The Investigatory Powers Tribunal Rules 2018 SI
  42. The Investment Bank Special Administration (England and Wales) Rules 2011 SI
  43. Legal Services Act 2007 Act
  44. The Licensed Conveyancers' Discipline and Appeals Committee (Procedure) Rules Approval Order 2001 SI
  45. The Local Authority Social Services Complaints (England) Regulations 2006 SI
  46. The Local Government Pension Scheme(Pension Sharing on Divorce) Regulations 2000 SI
  47. The Ministry of Defence Police (Conduct etc. ) Regulations 2015 SI
  48. The Ministry of Defence Police (Conduct, Performance and Appeals Tribunals) Regulations 2020 SI
  49. The Ministry of Defence Police (Conduct) Regulations 2009 SI
  50. The National Crime Agency (Complaints and Misconduct) Regulations 2013 SI
  51. The National Crime Squad (Dispensation from Requirement to Investigate Complaints) Regulations 2003 SI
  52. The National Health Service (Complaints) Regulations 2004 SI
  53. The National Health Service (Service Committees and Tribunal) Regulations 1992 SI
  54. The Part-time Workers (Prevention of Less Favourable Treatment) Regulations 2000 SI
  55. The Payment and Electronic Money Institution Insolvency (England and Wales) Rules 2021 SI
  56. The Pension Protection Fund (Maladministration) Regulations 2005 SI
  57. The Police (Conduct) Regulations 2008 SI
  58. The Police (Conduct) Regulations 2020 SI
  59. Police (Northern Ireland) Act 1998 Act
  60. The Police (Performance) Regulations 2020 SI
  61. Police Reform Act 2002 Act
  62. The Postal Administration Rules 2013 SI
  63. The Postal Services (Consumer Complaints Handling Standards) Regulations 2008 SI
  64. Regulation (EU) 2019/1150 of the European Parliament and of the Council of 20 June 2019 on promoting fairness and transparency for business users of online intermediation services (Text with EEA relevance) EU regulation
  65. The Revenue and Customs (Complaints and Misconduct) Regulations 2010 SI
  66. The Service Police (Complaints etc.) Regulations 2023 SI
  67. Sexual Offences Act 2003 Act 4 definitions
  68. Sexual Offences (Amendment) Act 1992 Act 3 definitions
  69. Trade Union and Labour Relations (Consolidation) Act 1992 Act
  70. The Trafficking People for Exploitation Regulations 2013 SI
  71. The UK Border Agency (Complaints and Misconduct) Regulations 2010 SI 2 definitions
  72. Water Industry Act 1991 Act
  73. The Working Time Regulations 1998 SI
  74. Youth Justice and Criminal Evidence Act 1999 Act

Definitions are taken from the instruments as published on zoomLaw, for guidance only. Check the instrument itself for its scope and any amendments.