A gangster once branded Britain's most wanted man and his dangerous sidekick have been jailed for robbing £200,000 of jewellery from the daughter of Scotland's richest woman.

Brian 'the Hawk' Martin, 58, and Christopher McMultan,40, forced their way into Sarah Gloag's Perthshire home, threatening her and husband Sundeep with knives.

The pair tied the couple up with masking tape before making off with precious jewels and cash.

Hairdresser Sarah's mother Ann Gloag - who made millions from her Stagecoach bus empire - phoned police after the robbery.

A jury at the High Court in Edinburgh returned guilty verdicts against McMultan who spent a week denying robbing Ms Gloag and another couple in Perthshire the previous day last January.

Martin, who has more than 50 convictions in a criminal career dating back to 1976, pleaded guilty to the robberies last week after hearing Ms Gloag give evidence.

Martin's record includes convictions for firearms offences and assault and robbery.

Temporary judge Paul Arthurson QC handed McMultan, a prisoner of HMP Perth, a 12 year sentence and Martin was given 14 years.

Judge Arthurson told Martin: "It is clear that you are a highly dangerous and violent criminal. It is the duty of the court to impose a lengthy custodial sentence."

The jury spent two hours deliberating their verdict against McMultan who denied acting as Martin's accomplice.

They returned unanimous verdicts of guilty to charges which Martin pleaded guilty to last week.

The jury concluded that on January 18 2015, at an address in Muthill, Perthshire, Mr McMultan assaulted David Gilfoyle and Joanne Miles and forced his way into the property.

The jury also found that Mr McMultan shouted, swore, and threatened Mr Gilfoyle and Ms Miles with violence before compelling them to lie face down on the ground.

McMultan then binded Mr Gilfoyle and Ms Miles's hands and feet with tape and detained them against their will.

He then compelled Mr Gilfoyle to disclose the PIN of his bank card before robbing him of a wallet and its contents.

During the raid, the jury concluded that McMultan did with "face masked and while holding knife" did assault Sundeep Salins, Sarah Gloag and two children at a house in Perthshire on January 19 2015.

They also found that he seized Sarah Gloag on the body, presented a knife at her and "did shout, swear and utter threats" at Sundeep Salins, Sarah Gloag and the two children.

The jurors concluded that McMultan detained "them against their will and you did thus abduct the quartet" before robbing them of a quantity of jewellery and £4,000 cash."

Jurors were told at the start of proceedings that prosecution and defence lawyers had agreed that the jewellery allegedly taken from Ms Gloag was worth £200,000.

Following the jury's verdict, Mr Brown read the details of a legal document in which the prosecution and defence were agreed detailed Martin and McMultan's involvements in the two raids.

Mr Brown said that Martin and McMultan committed the first raid at 5.15pm on January 18 2015.

The following night, they forced their way into Ms Gloag's house in Perthshire.

He said: "At around 6.45pm Sarah Gloag was in the kitchen when she heard a noise coming from the courtyard outside.

"She looked out the window and saw two males at the main door to the house. She opened the side door and asked them what they wanted.

"Brian Martin smiled at her before approaching her, pulling a hood over his face and producing a knife. He struggled with her at the door and managed to put open it against her attempts to close it over.

"He grabbed her from behind and put his hand over her mouth and held a knife to her throat.

"She was aware of a second male who she identified later in evidence as Christopher McMultan, following Brian Martin."

Mr Brown said: "At around 7.10pm Sarah Gloag's mother Ann Gloag telephoned. Mr Salins answered and Ann Gloag immediately noted that he was hesitant.

"Witness Ann Gloag asked to speak to her daughter whereupon Mr Salins stated 'there has been a very serious incident and we have been robbed and our lives have been threatened but we are all okay'.

"Ann Gloag asked him whether he had called the police and he said no. She then terminated the call and called 999 and informed them of the robbery."

The following day, the court heard the pair threw pieces of Sarah Gloag's jewellery onto the A92 road. Police recovered the valuables.