The father of Oscar Pistorius' slain girlfriend has told a South African newspaper the athlete will have to "live with his conscience" if he is lying about how he killed her.

In its Saturday edition, the Afrikaans-language Beeld newspaper quotes Barry Steenkamp as saying Pistorius will "suffer" alone if his assertion that he accidentally shot 29-year-old Reeva Steenkamp is false.

Barry Steenkamp says he might be able to forgive Pistorius one day if the double-amputee Olympian is telling the truth.

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Barry Steenkamp says he might be able to forgive Oscar Pistorius one day if the double-amputee Olympian is telling the truth. (Rogan Ward/Reuters)

Pistorius was released on bail on Friday. He is charged with premeditated murder in the Valentine's Day slaying of his model girlfriend.

South African correctional officers on Saturday visited the gated home in which Pistorius is staying in Pretoria, a day after a magistrate released him on bail.

He was granted bail on Friday, which was set at 1 million rand ($114,700 Cdn), with 10,000 rand ($1,155 Cdn) in cash up front and proof that the rest is available.

Chief Magistrate Desmond Nair ruled that Pistorius could not leave the district of Pretoria without his probation officer's permission and was not allowed to consume drugs or alcohol.

The magistrate also said Pistorius must hand over his passports and turn in any other guns that he owns.

His release capped four days of often startling testimony.

Dozens of journalists and international and local television crews had converged on the red-brick courthouse to hear the decision, a sign of the global fascination with a case involving a once-inspirational athlete and his beautiful girlfriend, a law school graduate and budding reality TV show contestant.

South Africans on Saturday had mixed reactions to his bail sentence.

Pretoria resident Christo Bresler supported the athlete's release as he didn't think Pistorius was a flight risk.

"He is an international figure, he has declared all of his assets and that's all there is to it," he said.

Fellow resident Shawn Ellis was not so convinced.

"I think the guy should be behind bars," he said, angrily.

"I can't see any mitigating facts what so ever. I followed the case and I must admit yesterday, extreme disappointment when he got bail," Ellis added.

Pistorius will reappear in court on June 4.