Oscar Pistorius was charged with murdering his girlfriend on Valentine's Day (Creative Commons)

The defense team representing Oscar Pistorius, the Paralympic and Olympic sprinter charged with the murder of his girlfriend Reeva Steenkamp, began to highlight parts of the case during a second bail hearing Wednesday in Pretoria, South Africa, that may have been botched by police investigation.

Despite Pistorius's testimony that he shot his girlfriend on Valentine's Day morning because he believed she was an intruder, prosecutors say they suspect Pistorius knew it was his girlfriend on the other side of the door and have called him "a flight risk" if granted bail.

CNN reported:

• But police investigator Hilton Botha told the court Wednesday that Pistorius, 26, wasn't acting in self-defense when he shot through the door of a toilet room in the bathroom of his home and killed Steenkamp.
• Botha said he believes Pistorius knew Steenkamp was on the other side of the door. He didn't explain why investigators think that, but suggested Pistorius was specifically aiming to hit the toilet where Steenkamp had gone.
• But he also said investigators have found no evidence that is inconsistent with Pistorius' story.

SEE ALSO: Pistorius Charged With Premeditated Murder

However, Botha also admitted that police may have taken some missteps with the investigation.

According to The Guardian, Botha initially said he had found two boxes of "steroids" in Pistorius's bedroom and later changed it to "two boxes of testosterone, needles and injections" and finally said it was an "herbal remedy" called test-composutim co-enzyme that "is not a steroid and not a banned substance."

The Guardian also reported:

• Botha acknowledged that Pistorius's legal team had found a spent bullet cartridge in the toilet bowl that his officers did not. He also confronted Botha, saying: "You were in the house walking with unprotected shoes. That should not happen." Botha conceded that it should not.
• Botha said police found two iPhones in the bathroom and two BlackBerrys in the bedroom, adding that none had been used to phone for help. But Roux claimed the defence team had another phone in its possession that the police had failed to request. "Why did you not come to us and ask for Pistorius's cellphone number?" he asked.
• Roux also took him to task for failing to check Pistorius's claim that he phoned the Netcare hospital at 3.20am.
• Botha said ammunition for a .38-calibre weapon had been found at the house but Pistorius did not hold a licence for it. "Did you take steps to find out who the owner of the ammunition was?" Roux demanded. Botha replied: "No, I didn't."
• Roux said a postmortem showed that Steenkamp's bladder was empty. He said that was consistent with her getting up at 3am to go to the toilet. Botha could not disagree.
• Wilting under pressure, Botha conceded that he had initially said there would be "no problem" with Pistorius receiving bail but changed his mind after talking to forensics about "how it went down".

SEE ALSO: Nike Cuts Pistorius After Murder Charge

According to the BBC, a witness reported hearing arguments from 2 to 3 a.m. at Oscar Pistorius's home that "sounded like a fight." However, the witness was not able to determine whether the voices belonged to Pistorius and Steenkamp.

The verdict of Pistorius' bail hearing is expected to be determined Thursday.

Find more Neon Tommy coverage of Oscar Pistorius here.

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