Ashworth Hospital medical director Dr David Fearnley denied that Ashworth Hospital had "gone to war" with Ian Brady.
He said: "I don't think anything could be further from the truth."
"The mental health tribunal process is a legal process, but it's extremely important that we provide the best evidence we can to allow the tribunal to make the best decision it can because of the serious consequences."
Asked if the public platform of the tribunal may have exacerbated Brady's illness, Dr Fearnley said: "I think the difficulty with an individual such as Ian Brady is that he has a complex mental disorder and for many years has been able to publicise his concerns.
"However, we see this as part of an overall problem which our experts are looking into and will continue to provide expert care."
Moors murderer Ian Brady has been told he cannot be transferred to prison from the maximum security hospital where he is being held.
Yesterday, I said Ian Brady didn't strike me as having a "chilling or sinister" presence any more. I'm reviewing that opinion now.
Moors murderer Ian Brady has spoken publicly for the first time in almost 50 years while giving evidence at his mental health tribunal.