Oscar's iPhone puzzles cops

Investigators in the athlete's murder case have still not been able to analyse his phone's data.

Oscar Pistorius leaves the Pretoria Magistrates Court on June 4 after appearing for the murder of his girlfriend Reeva Steenkamp. Picture: AFP.

PRETORIA - Eyewitness News has learnt that investigators in the Oscar Pistorius murder case have still not been able to forensically analyse the athlete's smartphone which may hold key evidence.

It emerged last month that Pistorius had forgotten a password to the Apple iPhone he had used on the night he shot and killed his girlfriend Reeva Steenkamp on Valentine's Day this year.

Police investigators have asked their counterparts at Interpol to assist them in acquiring Apple's expertise.

While the handset seized at Pistorius's house is not locked, investigators require the account password in order to analyse the device and access deleted or hidden data.

But with just three weeks to go until a trial date is expected to be set, a police official close to the investigation says Interpol has not yet responded to their request.

Software available in South Africa has been unable to crack the device and it's hoped the password can be retrieved from Apple servers.

The appropriate legal process is being followed via Interpol to gain access to the confidential data.