The knife allegedly used to murder Trowbridge man Ian Graham was shown at court today.

During the proceedings, at Bristol Crown Court, the kitchen knife claimed to have been used by his partner Louise Jane Cox, 45, to stab the 51-year-old was twice was discussed.

Mr Graham, of Beaufort Mansions, Stallard Street, died following an incident at his home in the early hours of November 20 last year.

Dr Hugh White told the court, overseen by Neil Ford QC, that Mr Graham suffered a 5cm wound to the neck and a fatal track wound, between 12cm and 14cm deep, to the top of his chest which divided an artery and penetrated a lung.

"In the context of where it happened I don't think he could have survived," said Dr White.

"Unless a knife comes directly in contact with bone the main resistance is skin and once it penetrates it just keeps going. A stab wound like this could have been done with at most moderate force."

Cox, Mr Graham and his friend Ian Hungerford had been drinking at the ground floor flat from around 4.30pm, on November 19 into the early hours. Mr Graham suffered his injuries at around 4am with a call to the emergency services made soon after.

Police, followed by paramedics, came to Mr Graham's home at 4.30am to find the bloody knife, Mr Hungerford aiding his friend and that Cox had left the property.

Cox was found by police at Trowbridge Train Station at 4.40am and arrested on suspicion of attempted murder - later being charged with murder.

Mr Graham died at Royal United Hospital, Bath, at 5.27am, on November 20.

Seven hours after being arrested, a urine sample was taken from Cox showing that she was still one-and-a-times over the legal drink/drive limit. A blood sample taken from Mr Graham during his postmortem showed he was four times over the legal drink/drive limit at the time of his death.

Cox has yet to enter a plea.

The case continues.