Torto and Lansana are jointly charged with the murder of Lovia. Both pleaded not guilty to the charge. Their explanation is that Lovia had tried to rape Torto and in the course of protecting her they both were obliged to push Lovia and he fell down some stairs. Both had fled the scene but later gave themselves up to the police. Lansana chooses not to give evidence but her counsel calls her local preacher to state that Lansana had been a Bible School teacher and sang in the church choir for decades. Her counsel also suggests in cross-examining a prosecution eye witness, Gasper, that he had been high on marihuana on the night of the alleged murder and that his account his account of events was therefore not reliable. Lansana has two previous convictions for stealing. Torto elects to testify and in the course of her testimony denied forcefully a purported statement in which she admitted an attempt to kill Lovia’’.Torto has several drug-related convictions and is awaiting trial on a charge of violent disorder.Discuss the evidential issues.