In a criminal trial, the prosecution is relying on the testimony of a witness, Sarah, who claims to have overheard the defendant, Michael, confessing to the crime. Sarah alleges that Michael confessed to committing arson during a conversation they had at a local coffee shop. Michael's defence attorney challenges Sarah's credibility and argues that her testimony should not be admitted as it constitutes hearsay and lacks corroboration. Question: Discuss the concepts of corroboration and hearsay in evidence law, particularly in the context of a criminal trial. Evaluate the admissibility of Sarah's testimony regarding Michael's alleged confession, considering the principles of corroboration and hearsay. Analyse the potential factors that the court may consider when determining whether Sarah's testimony should be admitted, including any exceptions to the hearsay rule that may apply. Finally, discuss the impact of the court's ruling on the admissibility of Sarah's testimony on the outcome of the trial. (15 marks)