Now he is facing further jail time

A prisoner is facing further jail after scalding a grandson of crime clan matriarch Mags Haney with sugar and boiling water.

Vincent Robertson (54) was seen carrying a kettle into a cell at Clackmannanshire’s tough Glenochil Prison, which occupied at the time by James Kerr Cowan, grandson of the late Big Mags Haney.

Prosecutor Graham McLachlan said Robertson then “left quickly” and warders were alerted that something was wrong by Kerr Cowan’s “shouts and screams”.

Kerr Cowan, then 40, was found with seconddegree burns on his chest and abdomen that were beginning to blister.

He was given first aid by a jail nurse before being sent to hospital where he was treated and sent back to the prison.

The incident occurred on February 24 last year.

Mr McLachlan told the court that Robertson was in Glenochil at the time serving a sentence imposed at Dundee.

He was freed in September on a supervised release order, and was now subject to recall.

Roberston, from Fife, whose address was given on court papers as now of Barlinnie Prison, Glasgow, appeared from custody at Falkirk Sheriff Court on Tuesday and pleaded guilty to assaulting Kerr Cowan to his injury.

Sheriff Craig Caldwell deferred sentence for reports until March 23.

He told Robertson: “This is an extremely serious offence. Significant injury may have been caused to this other man, whatever offence he may have caused you. A custodial sentence is almost inevitable.”

Kerr Cowan hit the news in 2014 when cops found him near shops in Raploch “in a state of agitation” with a Stanley knife hidden between his buttocks.

Despite over 100 previous convictions, he was, on that occasion, sentenced to supervision, after admitting possessing a bladed weapon.