Detentions Under Section 135 and 136 of the Mental Health Act – Assessment Outcome

Data values	Data description	Provider Health Board	Data Period Quarter	Assessment Outcome
95	Total	Wales	Q1 2019-20	Person agreed to go into hospital
124	Total	Wales	Q1 2019-20	Person detained under the Mental Health Act and admitted to hospital
298	Total	Wales	Q1 2019-20	Discharged from section with a community-based mental health plan of care
106	Total	Wales	Q1 2019-20	Discharged from section – no mental health follow-up care needed
10	Total	Wales	Q1 2019-20	Not recorded
107	Total	Wales	Q2 2019-20	Person agreed to go into hospital
114	Total	Wales	Q2 2019-20	Person detained under the Mental Health Act and admitted to hospital
258	Total	Wales	Q2 2019-20	Discharged from section with a community-based mental health plan of care
104	Total	Wales	Q2 2019-20	Discharged from section – no mental health follow-up care needed
6	Total	Wales	Q2 2019-20	Not recorded
71	Total	Wales	Q3 2019-20	Person agreed to go into hospital
112	Total	Wales	Q3 2019-20	Person detained under the Mental Health Act and admitted to hospital
186	Total	Wales	Q3 2019-20	Discharged from section with a community-based mental health plan of care
112	Total	Wales	Q3 2019-20	Discharged from section – no mental health follow-up care needed
2	Total	Wales	Q3 2019-20	Not recorded
62	Total	Wales	Q4 2019-20	Person agreed to go into hospital
112	Total	Wales	Q4 2019-20	Person detained under the Mental Health Act and admitted to hospital
198	Total	Wales	Q4 2019-20	Discharged from section with a community-based mental health plan of care
76	Total	Wales	Q4 2019-20	Discharged from section – no mental health follow-up care needed
4	Total	Wales	Q4 2019-20	Not recorded
49	Total	Wales	Q1 2020-21	Person agreed to go into hospital
85	Total	Wales	Q1 2020-21	Person detained under the Mental Health Act and admitted to hospital
148	Total	Wales	Q1 2020-21	Discharged from section with a community-based mental health plan of care
75	Total	Wales	Q1 2020-21	Discharged from section – no mental health follow-up care needed
3	Total	Wales	Q1 2020-21	Not recorded
100	Total	Wales	Q2 2020-21	Person agreed to go into hospital
85	Total	Wales	Q2 2020-21	Person detained under the Mental Health Act and admitted to hospital
221	Total	Wales	Q2 2020-21	Discharged from section with a community-based mental health plan of care
102	Total	Wales	Q2 2020-21	Discharged from section – no mental health follow-up care needed
3	Total	Wales	Q2 2020-21	Not recorded
55	Total	Wales	Q3 2020-21	Person agreed to go into hospital
95	Total	Wales	Q3 2020-21	Person detained under the Mental Health Act and admitted to hospital
168	Total	Wales	Q3 2020-21	Discharged from section with a community-based mental health plan of care
61	Total	Wales	Q3 2020-21	Discharged from section – no mental health follow-up care needed
2	Total	Wales	Q3 2020-21	Not recorded
61	Total	Wales	Q4 2020-21	Person agreed to go into hospital
114	Total	Wales	Q4 2020-21	Person detained under the Mental Health Act and admitted to hospital
220	Total	Wales	Q4 2020-21	Discharged from section with a community-based mental health plan of care
62	Total	Wales	Q4 2020-21	Discharged from section – no mental health follow-up care needed
1	Total	Wales	Q4 2020-21	Not recorded
92	Total	Wales	Q1 2021-22	Person agreed to go into hospital
131	Total	Wales	Q1 2021-22	Person detained under the Mental Health Act and admitted to hospital
280	Total	Wales	Q1 2021-22	Discharged from section with a community-based mental health plan of care
92	Total	Wales	Q1 2021-22	Discharged from section – no mental health follow-up care needed
2	Total	Wales	Q1 2021-22	Not recorded
63	Total	Wales	Q2 2021-22	Person agreed to go into hospital
97	Total	Wales	Q2 2021-22	Person detained under the Mental Health Act and admitted to hospital
240	Total	Wales	Q2 2021-22	Discharged from section with a community-based mental health plan of care
112	Total	Wales	Q2 2021-22	Discharged from section – no mental health follow-up care needed
2	Total	Wales	Q2 2021-22	Not recorded
65	Total	Wales	Q3 2021-22	Person agreed to go into hospital
120	Total	Wales	Q3 2021-22	Person detained under the Mental Health Act and admitted to hospital
212	Total	Wales	Q3 2021-22	Discharged from section with a community-based mental health plan of care
75	Total	Wales	Q3 2021-22	Discharged from section – no mental health follow-up care needed
1	Total	Wales	Q3 2021-22	Not recorded
51	Total	Wales	Q4 2021-22	Person agreed to go into hospital
125	Total	Wales	Q4 2021-22	Person detained under the Mental Health Act and admitted to hospital
219	Total	Wales	Q4 2021-22	Discharged from section with a community-based mental health plan of care
65	Total	Wales	Q4 2021-22	Discharged from section – no mental health follow-up care needed
2	Total	Wales	Q4 2021-22	Not recorded
69	Total	Wales	Q1 2022-23	Person agreed to go into hospital
117	Total	Wales	Q1 2022-23	Person detained under the Mental Health Act and admitted to hospital
237	Total	Wales	Q1 2022-23	Discharged from section with a community-based mental health plan of care
90	Total	Wales	Q1 2022-23	Discharged from section – no mental health follow-up care needed
4	Total	Wales	Q1 2022-23	Not recorded
67	Total	Wales	Q2 2022-23	Person agreed to go into hospital
153	Total	Wales	Q2 2022-23	Person detained under the Mental Health Act and admitted to hospital
253	Total	Wales	Q2 2022-23	Discharged from section with a community-based mental health plan of care
104	Total	Wales	Q2 2022-23	Discharged from section – no mental health follow-up care needed
1	Total	Wales	Q2 2022-23	Not recorded
59	Total	Wales	Q3 2022-23	Person agreed to go into hospital
106	Total	Wales	Q3 2022-23	Person detained under the Mental Health Act and admitted to hospital
219	Total	Wales	Q3 2022-23	Discharged from section with a community-based mental health plan of care
77	Total	Wales	Q3 2022-23	Discharged from section – no mental health follow-up care needed
64	Total	Wales	Q4 2022-23	Person agreed to go into hospital
121	Total	Wales	Q4 2022-23	Person detained under the Mental Health Act and admitted to hospital
208	Total	Wales	Q4 2022-23	Discharged from section with a community-based mental health plan of care
96	Total	Wales	Q4 2022-23	Discharged from section – no mental health follow-up care needed
55	Total	Wales	Q1 2023-24	Person agreed to go into hospital
132	Total	Wales	Q1 2023-24	Person detained under the Mental Health Act and admitted to hospital
312	Total	Wales	Q1 2023-24	Discharged from section with a community-based mental health plan of care
116	Total	Wales	Q1 2023-24	Discharged from section – no mental health follow-up care needed
2	Total	Wales	Q1 2023-24	Not recorded
67	Total	Wales	Q2 2023-24	Person agreed to go into hospital
117	Total	Wales	Q2 2023-24	Person detained under the Mental Health Act and admitted to hospital
249	Total	Wales	Q2 2023-24	Discharged from section with a community-based mental health plan of care
110	Total	Wales	Q2 2023-24	Discharged from section – no mental health follow-up care needed
4	Total	Wales	Q2 2023-24	Not recorded
60	Total	Wales	Q3 2023-24	Person agreed to go into hospital
120	Total	Wales	Q3 2023-24	Person detained under the Mental Health Act and admitted to hospital
244	Total	Wales	Q3 2023-24	Discharged from section with a community-based mental health plan of care
106	Total	Wales	Q3 2023-24	Discharged from section – no mental health follow-up care needed
7	Total	Wales	Q3 2023-24	Not recorded
70	Total	Wales	Q4 2023-24	Person agreed to go into hospital
113	Total	Wales	Q4 2023-24	Person detained under the Mental Health Act and admitted to hospital
212	Total	Wales	Q4 2023-24	Discharged from section with a community-based mental health plan of care
108	Total	Wales	Q4 2023-24	Discharged from section – no mental health follow-up care needed
5	Total	Wales	Q4 2023-24	Not recorded
59	Total	Wales	Q1 2024-25	Person agreed to go into hospital
122	Total	Wales	Q1 2024-25	Person detained under the Mental Health Act and admitted to hospital

Showing 1 to 100 of 2,043 rows

Page 1 of 21

Next update expected:26 February 2026

Updates

• 27th November 2025: Dataset first published.

Main information

• Designation: Management information
• Data provider: Welsh Government
• Data source: Removal of a suspected mentally disordered person to a place of safety (s.135 and s.136 Mental Health Act) data collection
• Time period covered: April 2019 to September 2025

Overview

• Summary of dataset and variables:

  Section 135 and Section 136 of the Mental Health Act 1983 give police officers lawful authority to take a person from a private dwelling (Section 135) or from a public place (Section 136) to a place of safety to enable an assessment of their mental health for the purpose of their own and/or the safety of others. This table provides quarterly data on the assessment outcome following a mental health assessment for those detained under Section 135 and Section 136 in each health board across Wales.

  The table shows, for each assessment outcome:

  • the number of Section 135 and Section 136 detentions
• Data collection or calculation:

  The NHS Wales Performance Division in Welsh Government receive quarterly Removal of a Suspected Mentally Disordered Person to a Place of Safety (s.135 and s.136 Mental Health Act 1983) reporting forms from each health board. Standards relating to the forms have been reviewed and passed by the Welsh Information Standards Board (WISB) and the Welsh Information Development Group (WIDG) (previously known as the Data Standards Change Notice Sub-group).

• Statistical quality:

  The NHS Wales Performance Division in Welsh Government upload the data received quarterly. The data processing system used ensures that data is not missing from the returns. Further validation and verification checks are then undertaken quarterly, including, for example, checking trends in the data and any significant drops in numbers. Any abnormalities in the data are noted and are raised with the relevant health board, thus enabling health board to check, correct or comment on their data and to provide contextual information where relevant.

  If a data value previously published is found to be incorrect and subsequently is corrected or has been changed to improve accuracy, an r will be added to the relevant data value in the next publication.

  Further information can be found in the related [Mental Health (Wales) Measure 2010: quality report] (https://www.gov.wales/detentions-under-section-135-and-136-mental-health-act-quality-report)

• Related reports:
  • Detentions under Section 135 and 136 of the Mental Health Act Statistical Release
  • Detentions under Section 135 and 136 of the Mental Health Act: Quality Report

Published by

• Organisation: Welsh Government
• Contact email: hss.performance@gov.wales

Metadata

The metadata for this dataset is not included when you download the data. You can download this separately. This contains all the information from the 'About this dataset' tab.