A prisoner who allegedly injured three warders with bamboo sticks yesterday told a court he had been framed. Ho Yuk-wun, 36, accused officers of the Correctional Services Department of mistreating him in jail. The Crown alleged Ho had gone berserk and stabbed the officers after leaving his cell to empty his toilet bucket. The prisoner, appearing before Deputy Judge Yung Yiu-wing in the DIstrict Court, denied two charges of wounding with intent and one of assault occasioning actual bodily harm. On November 29 last, the three alleged victims were on duty at Stanley Prison. At about 8.50 am, Ho requested assistant officer Cheung Kai-pong to open the cell door before suddenly pushing the door open and splashing white powder in the officer's eyes, the Crown alleged. It said the defendant then stabbed the officer repeatedly with a 17-centimetre bamboo pipe sharpened at one end. The other two warders came to Mr Cheung's assistance and Ho attacked them. Ho, who represented himself, denied having initiated the attack and told the court he had a row with Mr Cheung and in the heat of the argument another officer, Ng Lit-shing, had come and hit him. The inmate said Mr Ng had a grudge against him because he had lodged a complaint over insulting remarks Mr Ng had made about him. 'He just wanted to take revenge and seized the opportunity to hit me,' the defendant said. Ho told the court he had twice been deprived of opportunities to make complaints to a visiting Justice of the Peace. The verdict is to be delivered today.