Spokesman Lt. Gen. Solomon Makgale said Tuesday the investigation team is convinced Pistorius has a charge to answer.
Pistorius will appear in a Pretoria court Monday. Makgale said it is expected Pistorius will be served with the indictment and a trial date will be set.
Pistorius says he accidentally shot his girlfriend Reeva Steenkamp on Feb. 14. The state alleges the couple may have argued and he intentionally killed her.
The double-amputee Olympian may face a life sentence in prison, with a minimum of 25 years, if convicted of a charge of premeditated murder. He was freed on bail Feb. 22.