Oscar Pistorius could face up to 25 years in jail if he is found guilty of murder, according to South African legal expert Julian Knight.
The athlete is charged with the murder of Reeva Steenkamp after he shot his then-girlfriend dead at his home on February 14 last year.
Judge Thokozile Masipa is due to deliver her verdict on the case on Thursday, with Knight believing the worst case scenario for the 27-year-old could see him sentenced to life imprisonment for pre-meditated murder.
Pistorius has always maintained his innocence, insisting he mistook Ms Steenkamp for an intruder after hearing a noise in the bathroom, and should Judge Masipa find him guilty of culpable homicide he is likely to face a lesser sentence.
Speaking to Perform, Knight shed light on the potential scenarios facing Pistorius ahead of the verdict.
He said: "My feelings are at best for Oscar he will be found guilty of culpable homicide, at worst, murder.
"If he is found guilty of murder the consequences will be, at worst, life imprisonment. Alternatively, if the judge finds that there are substantial and compelling circumstances a lesser sentence can be imposed.
"In terms of the current correctional services act, he will have to do half of his sentence if he is sentenced to a determinate sentence. If he is sentenced to life imprisonment, he will have to sit for 25 years before he is eligible for consideration for placement on parole.
"Obviously culpable homicide is less of a crime than murder because it is the negligent killing as opposed to the intentional killing of a human being.
"The sentences can range however from community service in certain incidences that you would have arising from possibly a motor vehicle collision, but when it comes to the negligent discharge of a firearm and the killing of a spouse or partner, you are looking at more jail time and my estimate would be eight to 12 years imprisonment.
"The prison that Oscar would go to would be more likely to be one of the prisons in the Pretoria area because all prisoners are kept by the department close to their families, their social structures and their support structures.
"So it would be more likely to be Pretoria central prison."