Oscar Pistorius' hearing will go into a third day as a witness heard 'non-stop shouting' coming from his home before shooting his girlfriend.
The Paralympic star has been charged with the murder of model girlfriend Reeva Steenkamp, who was found dead in the bathroom of his luxury house in Pretoria on Valentine's Day.

Detective Hilton Botha said the 29-year-old had been shot three times through the locked bathroom door.

Botha told Pretoria Magistrates' Court that two boxes of steroids and testosterone had been found at Pistorius' mansion, fuelling claims that 'roid rage' caused the incident.

But the defence countered the discovery telling chief magistrate Desmond Nair that the boxes contained herbal remedies that were not a banned substance.

Botha later confirmed there were 'no signs of an assault' on Steenkamp, which countered the earlier theory of a bloodied cricket bat being involved.

Witnesses claimed they heard 'talking that sounded like non-stop fighting from two to three in the morning' at Pistorius' home, while others reported hearing gunshots and screaming.

"We have the statement of a person who said after he heard gunshots, he went to his balcony and saw the light was on. Then he heard a female screaming two-three times, then more gunshots," Botha said.

Pistorius' legal team disputed those accounts with Botha conceding that the witnesses lived 300 metres away.

The prosecution had claimed numerous flaws in Pistorius' version of events throughout the first two days of the hearing, but defence lawyer Barry Roux forced Botha to state that there was nothing to show inconsistency in the 26-year-old's statement of what happened.

South African criminal attorney John Riley, who is not involved in the case, believes the Blade Runner's chances of being granted bail are slim, insisting the onus is on him to prove exceptional circumstances and said it could take over a year for a full trial to be heard.

"It's important to mention at this stage that Mr. Pistorius is unable to show that exceptional circumstances exist," Riley said.

"He is supposed to show is that if he's released on bail he's not going to commit another serious offence to put it simply or that he's not a threat another individual. He must also show that he's not going to run away or a flight risk.

"In general he needs to show that he's not going to do anything that prejudicially to affect the justice or bail system. If there is a likelihood that if released on bail he is going to be a threat to public safety then that should also be a reason to refuse bail."

The attorney did suggest that case may be fast-tracked due to its high-profile nature, but said either way it would still be a lengthy process.

"This is a matter regarded as such high-profile that a trial date is fast-tracked, to use that term, a date is allocated as soon as it becomes available," Riley said.

"An investigation could be completed within three months to six months or even a year. But certainly he would be very lucky if this matter went to trial within a year.

"The length and duration of the trial will depend on, how witnesses the prosecution has, how many witnesses the defence has and essentially what issues are in dispute between the state and the defence."

In South Africa, a charge of premeditated murder carries a lifetime sentence.

The bail hearing will continue on Thursday.