Two thugs have been caged for threatening a former Barrhead heroin baron over £150,000 he owed for a luxury car debt.

Kyle Byrne and George Stewart went to Sultan Mohammed’s home and threatened him over the six-figure sum he is said to owe for luxury Range Rovers.

Mohammed was jailed for five years and three months in 2011 after cops busted his heroin empire, which spanned from the north of England to the west of Scotland, The High Court in Glasgow heard he masterminded a network of couriers to which distributed drugs worth £200,000 from Yorkshire to Ayrshire.

Cash totalling £80,000 was found during a raid on his homeafter surveillance cops had tailed him and his associates for four-months On July 23 this year, Byrne, 28, and Stewart, 31, went to Mohammed’s home Rockwood, in Hillside Road to try to get him to pay up for the car debt. The details emerged when the pair appeared at Paisley Sheriff Court to admit their guilt over the incident.

Procurator Fiscal Depute Keri Marshall said: “The witness Mohammed was within his home address with family members when he noticed the light of a vehicle pulling in to his driveway, and the car parked to the side of the house, and two males got out of the front of the vehicle.

”On hearing a knock at the door, the complainer [Mohammed].”Byrne stated to the complainer [Mohammed] they were ‘friends of Fati’ and ‘wanted to chat’. The complainer let the males enter the house and took them through to the back lounge.”

Byrne said Mohammed owed £150,000 but he insisted he owed nothing, did not have any money, and would not be paying any money.

Byrne replied: “A debt’s a debt and it has to be paid.”

Ms Marshall added: “The complainer spoke with both men for some time but eventually asked them both to leave his house and, as they were leaving, Byrne said: ‘We’ll be back – and next time we won’t be so friendly’.”

“This was overheard by the complainer’s son, who was also in the house at the time”Both the complainer and his son were alarmed by these comments.”

Stewart agreed with all the comments, which were made by Byrne, and that night Mohammed reported to police.

Defence solicitor Paul Kavanagh, representing both men, said: “They were there to collect a legitimate debt, as they were told, in relation to the purchase of high-value Range Rovers – and there were four Range Rovers sitting outside the house.”

“The debt seems to be of a legitimate nature, for the purchase of these high-value Range Rovers.”

Sheriff James Spy ruled there was only one way he could deal with the men - and caged them for eight months, reduced from 12 as they admitted their guilt at the earliest opportunity.