Dr Adrian Grounds, Ian Brady's medical witness, said there had been "periodic conflicts with other patients".
The hospital's QC refers to the removal of "his weapon - his pen".
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Sir John rejected the PM's Brexit vision as "unreal and over-optimistic" as he accused negotiators of "souring" the atmosphere for talks.
Lively start to the week
White House budget officials outlined the information during a telephone call with reporters given on condition of anonymity.