An inmate at a north-east jail attacked two prison officers with a homemade bladed weapon after he was refused the chance to play in a football match.
Patrick Cameron created the sharp weapon using a piece of metal from a shelf and planned to defend himself with it if he was attacked.
However, he used it to assault staff who came to collect his dinner after he lost his temper on February 19.
Aberdeen Sheriff Court heard yesterday that the prisoner had become abusive when he was in the exercise area with officers Andrew Black and Stewart McBain the previous day.
He was told he could not take part in a football game and was sent to his cell at HMP Grampian.
Cameron lunged at the pair with the weapon in his hand when they came to collect his dinner plate.
Mr Black blocked the attack with his arm and was struck by the weapon.
Mr McBain fended him off and Cameron was restrained by other officers.
The 31-year old admitted being in possession of the weapon and assault charges when he appeared in court yesterday.
Fiscal depute Stephanie Ross said: “Andrew Black was taken to Peterhead accident and emergency where he was found to have suffered a puncture wound.
“Police were called and CCTV captured the incident in full.”
Representing Cameron, who has since been transferred to HMP Prison Shotts, defence agent Edward Gilroy explained the circumstances which led to the attack.
He said: “This particular incident occurred several months after he transferred to the prison in question.
“His position is that he had made a number of complaints about his treatment and these complaints had not been passed on.
“He was denied the opportunity to play in a football match.
“The purpose of the knife was protection in the prison system.”
Sheriff William Summers jailed Cameron for 30 months.
He said: “You have pleaded guilty to very serious charges involving the manufacture of a weapon and the use of that weapon to assault two prison officers.
“There is no alternative available to me but to impose a meaningful custodial sentence.”