A tabloid reporter who allegedly bought stories about Jon Venables' life in prison was accused of lying on oath when he told a court he was unaware his anonymous source was a prison officer.

Tom Savage told jurors he never knew Scott Chapman's true identity or that he worked at the prison where Jon Venables served time behind bars for child porn offences.

But under cross examination, prosecutor Jonathan Rees QC questioned him about Chapman's earlier evidence to the Old Bailey that he did not hide the fact he was a prison guard from journalists.