E/CN.4/1992/17 page 72 impaired, probably owing to blood clots resulting from internal haemorrhage. It was alleged that Mr. Brenner had not been given adequate medical treatment, and serious concern was expressed for his physical integrity. 204. On 8 August 1991, the Government provided the Special Rapporteur with the following information concerning Mr. Brenner: "Mr. Brenner has been examined by a neurologist who reported as follows: He has high blood pressure with tachycardia from time to time; His EEG record is normal; His black-outs have cleared up; He has diminished sensation of the left arm which is due to the shooting incident and head injury. The condition is stabilized and no specific treatment is indicated; It is doubtful whether there is anything which could be offered Mr. Brenner for his double vision, apart from prism lenses. Mr. Brenner was also examined by an opthalmic surgeon who reported that muscle motility tests were completely normal. The Commanding Officer of the Pretoria prison has recently confirmed that Mr. Brenner has received a new pair of spectacles and has been placed on medication for his blood pressure. The prison authorities have further given the assurance that Mr. Brenner's medical condition is monitored on a continual basis and that he will receive medical treatment whenever necessary." Letters 205. By letter dated 18 October 1991 the Special Rapporteur transmitted to the Government of South Africa information alleging that members of the South African Police had arrested Frans Mahuma, Thomas Mavundla, Thomas Monene and Elliot Ratnpau on 23 July 1991, in Khutsong township outside Carletonville. In statements made to their lawyer shortly after their release a few days later, without any charges being brought against them, these persons said that they had been tortured during interrogation to make them confess to certain crimes. Each of the four alleged that he had been forced to lie on the floor of a room in the police station with his hands tied behind him and his legs tied together with a rope. Three had sacks or bags placed over their heads. Each of the four said that the police had placed a metal rod either between their wrists, which were tied together, or between their legs, and attached wires to their fingers, ankles or lower backs. Electric shocks had been administered until they had agreed to sign confessions.