Kriss' body was discovered by a cyclist in March 2004

The High Court in Edinburgh was told Kriss' blood was found on the wing and bonnet of a burned out silver Mercedes found abandoned in Glasgow in 2004.

A forensic expert said a burned jacket found in the car had been worn by Imran Shahid, one of three men on trial for the alleged racially aggravated murder.

Mr Shahid, Zeeshan Shahid and Mohammed Faisal Mushtaq deny the charges.

DNA expert Terry Randall told the trial that a blood sample taken from Imran Shahid after his arrest matched with results from swabs and sticky tape applied to the jacket.

It is my opinion this blood had come from the deceased during a sustained assault on him Terry Randall

The odds that the jacket DNA came from anyone else - with the possible exception of a relation - were one in a billion, Mr Randall said.

The trial has heard how police and forensic experts moved in after Kriss' body was discovered by a cyclist near Celtic's training ground on 16 March, 2004.

They found blood-stains among newly felled logs near the body, which matched the 15-year-old's DNA.

The court has heard that Kriss had been snatched from a street in the Pollokshields area of Glasgow the previous afternoon by a gang of Asian men in a silver car.

A burned out Mercedes was found in a lane in the west end of Glasgow on the same evening.

Destroy DNA

Asked by advocate Depute Mark Stewart QC about the bloodstains near the body, Mr Randall said: "It is my opinion this blood had come from the deceased during a sustained assault on him."

He also described how tape and swabs were applied to the lining of the leather jacket found inside the Mercedes and the inside of the right pocket.

"In my opinion it reflects that this item has been worn extensively by Imran," he said.

Mr Randall added that the jacket had been subjected to extreme heat when the car was on fire and had been soaked as firefighters put out the flames.

Both of these factors would tend to remove or destroy DNA from casual contact, the court heard.

Evidence was also given relating to mobile phones alleged to have been used by the accused on 15 March, 2004.

Specific times

David Sanderson, a Kent-based expert in forensic telecommunications, talked the jury through a specialised system of phone mapping.

The witness said he was able to estimate where calls were likely to have been made from certain phones at specific times.

The jury heard the records traced apparent movement from Pollokshields to the Hamilton area and on to Falkirk, Stirling, Perth and Dundee.

They also appeared to show movement back towards an area close to Celtic Football Club's training ground in Glasgow, on to Granby Lane in the west end of the city and towards Pollokshields.

Mr Sanderson told the court the records indicated that the mobiles "may be travelling in a convoy or even in the same vehicle".