Oscar Pistorius trial: Expert handled gun 'without gloves'
14 March 2014 Last updated at 12:08 GMT
The Oscar Pistorius murder trial has heard that a ballistics expert at the crime scene handled the gun found there without wearing gloves.
Retired Police Col Schoombie van Rensburg told the court he was "very angry" when he saw the incident.
Col Van Rensburg insisted that he himself did not touch any of the evidence at the crime scene.
Mr Pistorius denies murder, saying he mistook Reeva Steenkamp for an intruder.
The prosecution says he shot Ms Steenkamp after an argument at his house on Valentine's Day 2013.