25 June 2013 Last updated at 07:11 ET Moors Murderer Ian Brady has told a mental health tribunal he has been misdiagnosed as mentally ill.
Brady, speaking publicly for the first time in 47 years, said his actions were interpreted by "opportunistic" doctors and nurses as signs of mental illness.
Brady - wearing a suit and tie, and dark glasses - says he should be moved from a high-security hospital to jail.
Along with his accomplice Myra Hindley, Brady, now 75, tortured and murdered five children aged between 10 and 17.
The pair buried some of their victims' bodies on Saddleworth Moor in the Peak District.
Brady is speaking at the final day of the tribunal, which is sitting at Ashworth high-security psychiatric hospital in Maghull, Merseyside, where he has been held since 1985.
Proceedings are being relayed to the press and public on TV screens at Manchester Civil Justice Centre.
The killer told the tribunal he talked to himself when alone, just like many other people.
He said he had been in solitary confinement for a while in prison and would occupy his days by memorising pages of Shakespeare and Plato - and then recite them aloud as he walked up and down in his cell.
He said that any similar activity in Ashworth was seen as a sign of mental illness and then used against him.
"If I interact with the TV, Tony Blair or something on, and make any comment, this is interpreted as psychosis.
"And who doesn't talk to themselves? This is a question people very rarely ask."
Asked why he wanted to leave Ashworth, he said he hated it because "the regime has changed to a penal warehouse".
"They give you false drugs and turn you into a zombie," he added.
And he criticised "some of these psychiatrists" saying he "would throw a net over them".
"I would not allow them on the street - they are unbelievable.
"How has this person got the job in the first place and how is it they're able to hold the job?"
Brady, who never looked up during the opening half hour of his evidence, spoke carefully in a soft and quiet Scottish accent.
The tribunal had earlier heard that Brady sometimes blocked out the world by listening to white noise on headphones - but he told the tribunal it was a "simply pragmatic" decision to make conditions more tolerable.
Continue reading the main story For almost 50 years the high walls of prison and hospital silenced Ian Brady.
Well, on Tuesday, he finally got what he has wanted for years - to speak about the way he says he has been misdiagnosed.
Brady sat in the hearing quietly and, never looking up once, began a long list of complaints - some clear to understand, others less so.
He has a soft voice and speaks carefully - apparently weighing his words. Sometimes he adds caveats to qualify what he wants to say. At other times he tries to use sarcasm and wit - such as describing medicated patients as zombies.
Brady is clearly a clever man. But the question is whether he is clever enough to get out of Ashworth.
His crimes involved dominating his victims. The experts at Ashworth believe that he now wants to dominate them and, through this mental health tribunal, control how the public perceive him.
They are determined he will not.
He said his resistance of the regime at Ashworth began in 1999 after he says he was assaulted by a group of riot-gear clad warders who were moving him from one unit to another.
Asked how he had spent his time in prison over the years, he said he had studied psychology and German and had worked on braille texts.
He said he had also worked as a barber at Wormwood Scrubs before he was sent to Ashworth.
'Makes toast' Brady said he had mainly stayed in his room for the past 10 months because of "negative, regressive, provocative staff that I am avoiding".
Asked about the theory he stayed in his room because he was paranoid about other patients, he said his relationship with other patients was "unremarkable".
The serial killer, who said he had mixed down the years with the notorious Kray twins and IRA terrorists, added: "Only the authorities call it paranoia - the prisoners say it is sensible suspicion."
Brady's legal team say he has a severe personality disorder but is not mentally ill and could be treated in prison rather than hospital.
But staff at Ashworth say he remains a paranoid schizophrenic who should stay at the hospital.
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Solicitor David Kirwan: "There's a moral imperative in this case and I don't think we should give in to him."
His reasons for wanting to return to prison remain unclear, although it is thought he might try to starve himself to death in prison.
He had been reported that he had been on hunger strike since 1999 and that doctors at Ashworth could force-feed Brady through a tube in his nose under mental health law.
But on Monday, a nurse told the tribunal that, despite his hunger strike, Brady often took the food made available to him, and he "makes himself toast every morning".
The judgement of the panel will be released at a later date yet to be fixed.
The last time Brady was heard in public was in 1966 at Chester Assizes, where he denied the murders.
He was eventually found guilty of three of the murders and jailed for life. He and Hindley later confessed to the other two. Hindley died in prison in 2002, aged 60.