| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Act | Appointed day(s) for spec. provisions | The Police (1998 Act) (Commencement No. 2) Order (Northern Ireland) 1999 | 1999 No. 48 | | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Act | Appointed day(s) for spec. provisions | The Police (1998 Act) (Commencement No. 3) Order (Northern Ireland) 1999 | 1999 No. 176 | | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Act | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 2 para. 2 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Pt. 1 2 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Pt. 5 heading | words inserted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 19 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Pt. 6 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Pt. 7 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 6 para. 23(4)(5) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | Pt. 7 | applied (with modifications) | Police Powers for Designated Staff (Complaints and Misconduct) Regulations (Northern Ireland) 2008 | 2008 No. 242 | reg. 4-66 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 1(2) 18(4) | repealed | Northern Ireland Act 1998 | 1998 c. 47 | s. 100(2) Sch. 15 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 18 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 19 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 20 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 21 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 22 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 23 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 24 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 8 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25 26 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 5 para. 1(4) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 6 para. 23(2)(b) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25 | modified | The Police (Northern Ireland) Act 1998 (Modification) Order 2003 | 2003 No. 376 | art. 2 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(1) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 9 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(2)(i) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 9 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(2A) | inserted | Public Service Pensions Act (Northern Ireland) 2014 | 2014 c. 2 | Sch. 8 para. 23 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(5)(a) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 9 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(6)(a) (b) and word | inserted | Police (Northern Ireland) Act 2003 | 2003 c. 6 | s. 24(2) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(7) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 9 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(8) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 9 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(8) | words omitted | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 134(1)(a) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(8) | excluded by 2000 c. 32 s. 49(4) (as substituted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | Sch. 11 para. 91 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25(9) | inserted | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 134(1)(b) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 25A | inserted | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 134(2) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 6 para. 23(2)(b) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26(1) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 10 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26(2)(g) | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | s. 49(5) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26(2A) | inserted | Public Service Pensions Act (Northern Ireland) 2014 | 2014 c. 2 | Sch. 8 para. 24 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26(5)(a) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 10 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26(6) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 10 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 26(6) | excluded by 2000 c. 32 s. 49(4) (as substituted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | Sch. 11 para. 91 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27 | | Police (Northern Ireland) Act 2000 | 2000 c. 32 | Sch. 6 para. 23(2)(b) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27 | modified | Northern Ireland Troubles (Legacy and Reconciliation) Act 2023 | 2023 c. 41 | Sch. 1 para. 17(5)(a) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(a) | words substituted | The Northern Ireland Act 1998 (Devolution of Policing and Justice Functions) Order 2010 | 2010 No. 976 | Sch. 3 para. 11 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(aa) | inserted | Police Reform Act 2002 | 2002 c. 30 | Sch. 7 para. 22(1) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(b) | repealed | Serious Organised Crime and Police Act 2005 | 2005 c. 15 | Sch. 4 para. 114(2)(a) Sch. 17 Pt. 2 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(c) | repealed | Police and Justice Act 2006 | 2006 c. 48 | Sch. 15 Pt. 1(A) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(ca) | inserted | Proceeds of Crime Act 2002 | 2002 c. 29 | Sch. 11 para. 34(2) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(ca) | repealed | Serious Crime Act 2007 | 2007 c. 27 | Sch. 8 para. 156(2) Sch. 14 | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(cb) | inserted | Serious Organised Crime and Police Act 2005 | 2005 c. 15 | Sch. 4 para. 114(2)(b) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(cb) | words substituted | Crime and Courts Act 2013 | 2013 c. 22 | Sch. 8 para. 62(a) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(cc) | inserted | Police and Justice Act 2006 | 2006 c. 48 | Sch. 1 para. 73(2) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(cc) | omitted | Crime and Courts Act 2013 | 2013 c. 22 | Sch. 8 para. 62(b) | Yes | |
| Police (Northern Ireland) Act 1998 | 1998 c. 32 | s. 27(1)(g) | word repealed | International Development Act 2002 | 2002 c. 1 | Sch. 4 | Yes | |