hospital located at Clydebank. It was previously a private sector hospital built at a cost of £180 million, but was bought in 2002 by the Scottish Executive for £37.5 million after it failed to produce a profit despite being established with the help of a subsidy provided by a previous government. The State Hospitals Board for Scotland is responsible for the secure psychiatric hospital at Carstairs, which provides high security services for mentally disordered offenders and others who pose a high risk to themselves or others. NHS 24 runs a telephone advice and triage service that cover the out of hours period, more recently also providing a national telehealth service. NHS Education for Scotland (training and e-library) NHS National Services Scotland It is the common name for the Common Services Agency (CSA) providing services for NHS Scotland boards. NHS Health Scotland, Health Protection Scotland and Information Services Division were succeeded by Public Health Scotland in April 2020. This new agency is a collaborative approach by both the Scottish Government and COSLA as a result of the Public Health Reform Programme. Links with the NHS in England The NHS in Scotland does have some services provided by the NHS in England - such as NHS Business Services Authority, which processes the payment of dental, optical and pharmacy vouchers and negotiates with pharmaceutical suppliers to negotiate prices per-item down. The costs for the medicines consumed is borne by the health board that patient's GP surgery is based in. Some very complex, low volume, highly-specialist hospital services are also provided by NHS Trusts in England, such as the Hospital for Tropical Diseases in London. These Trusts also treat patients from healthcare systems outside the UK. Representative Bodies The Mental Welfare Commission for Scotland is an independent statutory body which protects people with a psychological disorder who are not able to look after their own interests. It is funded through the Scottish Government Health & Social Care Directorate, and follows the same financial framework as the NHS in Scotland. The Scottish Health Council took over from local Health Councils on 31 March 2005. Quality of Healthcare Regulation of most medical practitioners is a reserved matter, with doctors regulated by the General Medical Council of the United Kingdom, Nurses by the Nursing and Midwifery Council, Dentists, Dental Therapists, Dental Hygienists, Dental Technicians and Dental Nurses by the General Dental Council, Optometrists by the General Optical