Forensic tests carried out by an expert for Oscar Pistorius’ murder trial are being rigorously challenged by the state prosecutor in South Africa.
Roger Dixon’s sequence for the shots that killed the athlete’s girlfriend contradict that of a police ballistics witness and pathologist.
Mr Pistorius denies intentionally killing Reeva Steenkamp in the early hours of Valentine’s Day last year.
He says he fired in fear at a toilet door, mistaking her for an intruder.
The prosecution says the 29-year-old model and law graduate was deliberately killed after the couple had an argument.
The double amputee Olympic and Paralympic athlete faces 25 years to life in prison if convicted of premeditated murder.
This is the last day of the trial before a break in the proceedings until Monday 5 May.