Mental Health Act 1983
Words in s. 15(3) repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 55, 56, Sch. 11 Pt. 1 (with Sch. 10); S.I. 2008/1900, art. 2(p) (with art. 3, Sch.)
S. 12A inserted (1.4.2008) by Mental Health Act 2007 (c. 12), ss. 22(5), 56 (with Sch. 10); S.I. 2008/745, art. 3(c)
S. 16 repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 55, 56, Sch. 11 Pt. 1 (with Sch. 10); S.I. 2008/1900, art. 2(p) (with art. 3, Sch.)
Words in s. 17(1) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(3)(a)(i), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 17(1) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(3)(a)(ii), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
S. 17(2A)(2B) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 33(2), 56 (with Sch. 10); S.I. 2008/1900, art. 2(j) (with art. 3, Sch.)
Words in s. 17(3) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(3)(b), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 17(4) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(3)(c)(i), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 17(4) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(3)(c)(ii), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 17(5) omitted (1.4.1996 with application as mentioned in s. 3(3) of the omitting Act)) by virtue of 1995 c. 52, ss. 3(1)(3), 7(2)
S. 17(6)(7) inserted (1.10.2007) by Mental Health Act 2007 (c. 12), ss. 39(1), 56 (with Sch. 10); S.I. 2007/2798, art. 2
For extent of s. 18 see 146, 147
Words in s. 18(1) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 21, 56, Sch. 2 para. 7(a) (with Sch. 10); S.I. 2008/1900, art. 2(d) (with art. 3, Sch.); S.I. 2008/2561, art. 2(b) (with art. 3, Sch.)
S. 18(2A) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 3(2) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 18(4) substituted (1.4.1996) by 1995 c. 52, ss. 2(1), 7(2)
Words in s. 18(4)(b) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 3(3)(a) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 18(4) repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 55, 56, Sch. 3 para. 3(3)(b), Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
S. 18(4A)(4B) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 3(4) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 18(7) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 3(5) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 19(3) substituted (1.3.2007) by National Health Service (Consequential Provisions) Act 2006 (c. 43), ss. 2, 8(2), Sch. 1 para. 64 (with Sch. 3 Pt. 1)
Words in s. 19(3) inserted (1.10.2007) by Mental Health Act 2007 (c. 12), ss. 46(2), 56 (with Sch. 10); S.I. 2007/2798, art. 2(g)
Words substituted by National Health Service and Community Care Act 1990 (c. 19, SIF 113:2), s. 66(1), Sch. 9 para. 24(2)
Words in s. 19(3) inserted (1.10.2007) by Mental Health Act 2007 (c. 12), ss. 46(2), 56 (with Sch. 10); S.I. 2007/2798, art. 2(g)
Ss. 17A-17G inserted (1.4.2008 s. 17F for certain purposes, otherwise 3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32(2), 56 (with Sch. 10); S.I. 2008/745, art. 2(c)(i); S.I. 2008/1900, art. 2(i) (with art. 3, Sch. )
S. 19A inserted (1.4.2008 for certain purposes, otherwise 3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 4 (with Sch. 10); S.I. 2008/745, art. 2(c)(ii); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 20(2) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 5(a) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 20(3)(5) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(4)(a), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 20(3)(6) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 5(b) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 20(4)(a) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 1, 56, Sch. 1 para. 4(a) (with Sch. 10); S.I. 2008/1900, art. 2(a) (with art. 3, Sch.)
S. 20(4)(b) and word "and" at the end of that paragraph repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 4(4)(a), 55, 56, Sch. 11 Pt. 2 (with Sch. 10); S.I. 2008/1900, art. 2(b)(p) (with art. 3, Sch.)
S. 20(4)(d) and preceding word inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 4(4)(b), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 20(4) repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 4(4)(c), 55, 56, Sch. 11 Pt. 2 (with Sch. 10); S.I. 2008/1900, art. 2(b)(p) (with art. 3, Sch.)
S. 20(5A) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(4)(b), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 20(6) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(4)(c), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 20(7)(a) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 1, 56, Sch. 1 para. 4(b) (with Sch. 10); S.I. 2008/1900, art. 2(a) (with art. 3, Sch.)
S. 20(9) repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 55, 56, Sch. 11 Pt. 1 (with Sch. 10); S.I. 2008/1900, art. 2(p) (with art. 3, Sch.)
S. 20(10) repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(4)(d), 55, 56, Sch. 11 Pt. 3 (with Sch. 10); S.I. 2008/1900, art. 2(b)(p) (with art. 3, Sch.)
Words in s. 21(1)(a) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 6(2)(a) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 21(1) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 6(2)(b) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21(3) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 37(2), 56 (with Sch. 10); S.I. 2008/1900, art. 2(l) (with art. 3, Sch.)
Words in s. 21(3) substituted (3.11.2008) by The Transfer of Tribunal Functions Order 2008 (S.I. 2008/2833), art. 6, Sch. 3 para. 40
S. 21(4)(5) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 6(3) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21A(4)(5) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 7 (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 21B(2)(3) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(5)(a), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 21B(2) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(2) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 21B(3) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(3) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 21B(3)(b) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 21, 56, Sch. 2 para. 7(b) (with Sch. 10); S.I. 2008/1900, art. 2(d) (with art. 3, Sch.); S.I. 2008/2561, art. 2(b) (with art. 3, Sch.)
S. 21B(4) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(4) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21B(4A) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(5) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21B(6A)(6B) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(6) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21B(7A) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(7) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21B(8)(9) repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 55, 56, Sch. 11 Pt. 1 (with Sch. 10); S.I. 2008/1900, art. 2(p) (with art. 3, Sch.)
S. 21B(10): definition of "appropriate medical officer" repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(5)(b), 56, Sch. 11 Pt. 3 (with Sch. 10); S.I. 2008/1900, art. 2(b)(p) (with art. 3, Sch.)
S. 21B(10): definition of "the appropriate body" substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(8)(a) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 21B(10): definition of "the relevant conditions" substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 8(8)(b) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 22 substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 9 (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 23(1) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 10(2) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 23(1A)(1B) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 10(3) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 23(2)(a)(b) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(6), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
S. 23(2)(c) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 10(4) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 23(4) inserted (1.4.2007) by The References to Health Authorities Order 2007 (S.I. 2007/961, art. 3, Sch. para. 13(2)(b)
Words in s. 23(4) inserted (1.4.2004) by Health and Social Care (Community Health and Standards) Act 2003 (c. 43), ss. 34, 199, Sch. 4 para. 53(b); S.I. 2004/759, art. 2
Words in s. 23(5) inserted (1.4.2007) by The References to Health Authorities Order 2007 (S.I. 2007/961, art. 3, Sch. para. 13(2)(c)
Words in s. 23(5)(a) substituted (1.4.2007) by The References to Health Authorities Order 2007 (S.I. 2007/961, art. 3, Sch. para. 13(2)(d)(i)
Words in s. 23(5)(a) substituted (1.4.2007) by The References to Health Authorities Order 2007 (S.I. 2007/961, art. 3, Sch. para. 13(2)(d)(ii)
Words in s. 23(5)(a) substituted (1.4.2007) by virtue of The References to Health Authorities Order 2007 (S.I. 2007/961), art. 3, Sch. para. 13(2)(d)(iii)
Words in s. 23(5)(a) substituted (1.3.2007) by National Health Service (Consequential Provisions) Act 2006 (c. 43), ss. 2, 8(2), Sch. 1 para. 65 (with Sch. 3 Pt. 1)
S. 23(6) inserted (1.4.2004) by Health and Social Care (Community Health and Standards) Act 2003 (c. 43), ss. 34, 199, Sch. 4 para. 53(c); S.I. 2004/759, art. 2
Words in s. 23(6) substituted (24.7.2007) by Mental Health Act 2007 (c. 12), ss. 45(1), 56 (with Sch. 10); S.I. 2007/2156, art. 2
Words in s. 24(1) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 11(2) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 24 inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(7), 56, (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 24(2)(4) inserted (1.4.1996) by 1995 c .52, ss. 1(2), 7(2), Sch. 1, para. 1
Words in s. 25(1) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 12(2) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 25(1) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(8)(a), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
Words in s. 25(1) substituted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 9(8)(b), 56 (with Sch. 10); S.I. 2008/1900, art. 2(b) (with art. 3, Sch.)
S. 25(1A) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 12(3) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Words in s. 25(2) inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32, 56, Sch. 3 para. 12(4) (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
S. 20: cross-heading substituted (3.11.2008) by virtue of Mental Health Act 2007 (c. 12), ss. 32(3), 56 (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Ss. 20A, 20B inserted (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 32(3), 56 (with Sch. 10); S.I. 2008/1900, art. 2(i) (with art. 3, Sch.)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J repealed (3.11.2008) by Mental Health Act 2007 (c. 12), ss. 36(2), 55, 56, Sch. 11 Pt. 5 (with Sch. 10); S.I. 2008/1210, art. 2(d) (with art. 4)
Ss. 25A-25J inserted (1.4.1996) by 1995 c. 52, ss. 1(1), 7(2)
Words in s. 26(1)(a) inserted (1.12.2007) by Mental Health Act 2007 (c. 12), ss. 26(2), 56 (with Sch. 10); S.I. 2007/2798, art. 3
S. 26(2)(a)(b) substituted (14.10.1991) by S.I. 1991/1881 art.3
Words in s. 26(5)(b) inserted (1.12.2007) by Mental Health Act 2007 (c. 12), ss. 26(3)(a), 56 (with Sch. 10); S.I. 2007/2798, art. 3
Words in s. 26(5)(c) inserted (1.12.2007) by Mental Health Act 2007 (c. 12), ss. 26(3)(b), 56 (with Sch. 10); S.I. 2007/2798, art. 3
In s. 26(5) the word “or” and paragraph (d) repealed (14.10.1991) by Children Act 1989 (c. 41, SIF 20), s. 108(7), Sch. 15 (with Sch. 14 paras. 1(1), 27(4)); S.I. 1991/828, art. 3(2)
Words in s. 26(6) substituted (1.12.2007) by Mental Health Act 2007 (c. 12), ss. 26(4)(a), 56, (with Sch. 10); S.I. 2007/2798, art. 3
Words in s. 26(6) substituted (1.12.2007) by Mental Health Act 2007 (c. 12), {ss. 26(4(b))}, 56, (with Sch. 10); S.I. 2007/2798, art. 3
Words in s. 26(7)(b) substituted (1.12.2007) by Mental Health Act 2007 (c. 12), ss. 26(5), 56, (with Sch. 10); S.I. 2007/2798, art. 3
S. 27 substituted (14.10.1991) by Children Act 1989 (c. 41, SIF 20), s. 108(5), Sch. 13 para. 48(1) (with Sch. 14 para. 1(1)); S.I. 1991/828, art. 3(2)
Words in s. 27 inserted (1.12.2007) by Mental Health Act 2007 (c. 12), ss. 26(6), 56 (with Sch. 10); S.I. 2007/2798, art. 3
S. 28(1) substituted (14.10.1991) by Children Act 1989 (c. 41, SIF 20), s. 108(5), Sch. 13 para. 48(3) (with Sch. 14 para. 1(1)); S.I. 1991/828, art. 3(2)
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