Gerrie Nel attempted to discredit Oscar Pistorius and laughed loudly at him during cross-examination
Prosecutor Gerrie Nel grilled witnesses in the stand, none more than Oscar Pistorius Reuters

Testifying in court at the Oscar Pistorius trial was like being run over by a bus, a witness has claimed.

Annette Stipp, Pistorius's former neighbour, has spoken out about her experience as a prosecution witness during what has been one of the most high-profile murder trials in the world.

She described answering questions from defence lawyer Barry Roux and prosecutor Gerrie Nel as "emotional, daunting and exhausting".

Her experience will come as no surprise to anybody who has followed the trial of Pistorius for shooting girlfriend Reeva Steenkamp dead on Valentine's Day last year.

Nel has even faced an official complaint that he breached the runner's human rights by questioning him toughly and repeatedly, making Pistorius cry.

Stipp was called to testify at North Gauteng High Court because she and husband Johan were the athlete's neighbours and were home on Valentine's Day last year when Pistorius claimed he accidentaly shot and killed Steenkamp.

Her toughest cross-examination came from Roux, whose role was to defend Pistorius by defeating the prosecution's case, of which Stipp was part.

But in coverage of the trial, Roux was frequently overshadowed by Nel, whose occasionally pugnacious style drew much attention.

Speaking to public official Karen Tewson for a study paper, Stipp said: "We feel [like we were] trampled by a bus."

"You feel you are being attacked personally. Your integrity is questioned. We felt that [we] were being attacked as [liars]," she said.

Stipp also called it "terrifying".

The trial has finished and judge Thokozile Masipa is considering her verdict expected to be delivered next month.