The 26-year-old double amputee, who also competed at the Olympics, has had the alleged violations - shooting a gun through the sunroof of a former girlfriend's car and discharging a firearm at a Johannesburg restaurant, which both happened before the killing of Steenkamp of Valentine's Day, added to his main case.

"The national director has indeed given them that authority and they will be added," Nathi Mncube told Associated Press.

"They are not new charges, they were charges that already existed.

"They were just in a different jurisdiction."

Pistorius' spokeswoman, Anneliese Burgess, said that his family did not want to comment on the legal aspects of the case.

The athlete is set to go on trial for murder at the North Gauteng high court in Pretoria on March 3-20 and although he has admitted to killing Steenkamp he denies murder, claiming that he mistook her for an intruder when he shot her through the locked bathroom door at his home in the South African capital.

If convicted of premeditated murder, he will face a life sentence with a minimum of 25 years in prison.

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