article: Winterbourne View treats people with learning disabilities and autism. Andrew McDonnell, who works with adults with mental disabilities, labelled some of the examples seen on film "torture". All four have been released on police bail. The hospital's owners, Castlebeck, have apologised and suspended 13 employees. Care Services Minister Paul Burstow said government regulator, the Care Quality Commission (CQC), had been asked to conduct an urgent investigation. Avon and Somerset police confirmed that three men - aged 42, 30 and 25 - and a 24-year-old woman were arrested as part of their ongoing investigation into the hospital. During five weeks spent filming undercover, Panorama's reporter captured footage of some of the hospital's most vulnerable patients being repeatedly pinned down, slapped, dragged into showers while fully clothed, taunted and teased. The hospital is a privately owned, purpose-built, 24-bed facility and is taxpayer-funded. NHS South West said it was "appalled" by the issues raised surrounding the care home. In a statement, it said: "We always expect safe, high quality care from providers of services and the abuse of vulnerable patients is totally unacceptable." Mr McDonnell, a clinical psychologist who viewed the footage, told the programme that basic techniques for dealing with patients with challenging behaviour were ignored. He said he was shocked by some of the treatment of vulnerable patients. After seeing footage of an 18-year-old patient named Simone being verbally abused and doused with cold water while fully clothed as a punishment, he said: "This is not a jail... people are not here to be punished. "This is a therapeutic environment. Where's the therapy in any of this? I would argue this is torture." Simone's parents told the programme that she had told them she was being abused at the hospital, but they had assured her that it would not be allowed to happen. "She told us that she had been hit, her hair had been pulled and she'd been kicked - and I said no, this wouldn't happen, they're not allowed," said the patient's mother. Professor Jim Mansell, from the University of Kent and a government adviser on the use of physical restraint for those with developmental disabilities, said that from the footage it appeared that staff were "waiting to pounce on people and restrain them". "This is the worst kind of institutional care. It is the kind of thing that was prevalent at the end of the 60s and that led Britain to gradually close the large, long-stay institutions," he added. The programme decided to film secretly after being approached by a former senior nurse at the hospital who was deeply concerned about the behaviour of some of the support workers caring for patients. "I have seen a lot over 35 years but this I have never seen anything like this. It is the worst I have seen," former nurse Terry Bryan told the programme. "These are all people's sons, daughters, parents, aunties, uncles. These are all people who have got familiesâ€¦ the families themselves do not know what goes on there." Mr Bryan reported his concerns to both management at Winterbourne
summary: Police in Bristol have arrested four people after secret filming by BBC Panorama found a pattern of serious abuse at a residential hospital.