A THUG who stabbed an innocent stranger on the buttocks in a case of mistaken identity has been jailed for 18 months.

Andrew Quinn, 25, knifed postman James Adams, 39, on Sauchiehall Street in September last year.

Quinn, of Springburn, pleaded guilty today at Glasgow Sheriff Court to the assault.

The court heard Mr Adams was a bystander while a couple were arguing in the street.

Quinn, who didn’t know Mr Adams, thought he was with the male.

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Prosecutor Adele MacDonald said: “Quinn walked towards Mr Adams from behind and stabbed him with the knife to his left buttock.”

Quinn ran away from the area but was pursued by Mr Adams.

Miss MacDonald added: “Mr Adams noticed he was bleeding and contacted the police.”

He was taken by ambulance to Glasgow Royal Infirmary suffering from a two-inch wound to his left buttock which required three stitches.

He was off work for a week.

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The incident was caught on CCTV and Quinn was arrested by police 11 days later.

Lawyer Ian Sievwright, defending, said: “He was using his uncle’s mobility vehicle to visit a friend whose grandmother had just committed suicide.”

Mr Sievwright added Quinn was remorseful for his assault on Mr Adams.

He said: “There had been an argument between a male and a female who were possibly partners or related.

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“The woman was trying to get away but he was being grabbed by the male and wriggled out the clothes she was wearing until she had nothing on her top half except a brassiere.

“Whatever happened had nothing to do with Mr Quinn and he thought Mr Adams was with the male.”

Sheriff John McCormick sentenced Quinn to 18 months for the assault

He said: “This was an unprovoked attack with a knife on a 39-year old stranger."