The prosecutors were granted right to appeal Oscar's coviction of a lesser charge of manslaughter in the murder of his girlfriend, Reeva Steenkamp.
Oscar's lawyers say they are challenging the prosecutors right to appeal because Oscars conviction was based on facts presented at the trial not interpretation of the law and as such should not be appealed.
Oscar Pistorius killed his girlfriend, Reeva Steenkamp on valentine's day two years ago when he claimed he thought she was an intruder and shot her 4 times while she was in the toilet.
Oscar's conviction of manslaughter has been a subject of discuss worldwide.
