R v Rogerson; R v McNamara (No 17)

The case of R v Rogerson; R v McNamara (No 17) involved the accused being tried for criminal charges. The dispute centred on the admissibility of evidence provided by a witness who had previously pleaded guilty to a related offence and was awaiting sentencing. The witness subsequently offered to assist the police and made a statement, motivated by the prospect of a sentence reduction. The witness's evidence was given in accordance with his statement, although no decision on a sentence reduction had been made by the time the evidence was provided. The accused's counsel sought a direction under section 165 of the Evidence Act 1995, which relates to the exclusion of evidence if its admission would be unfair to a party, on the basis that the witness's evidence was unreliable due to the potential for sentence reduction. The Crown opposed this direction.

The court needed to decide whether the witness's evidence was reliable and admissible under the Evidence Act. The key issue was whether the witness's potential for a sentence reduction rendered the evidence unreliable. The court considered whether the witness's motivation to assist police, in the hope of a reduced sentence, made the evidence unreliable and thus inadmissible under section 165. The court also had to assess whether the lack of a final decision on the sentence reduction at the time the evidence was given affected the reliability of the evidence.

The court found that the evidence was reliable and admissible. It concluded that the witness's motivation did not inherently render the evidence unreliable, as the evidence given was consistent with the statement provided. The court emphasised that the lack of a final decision on the sentence reduction did not affect the reliability of the evidence provided at the time. Therefore, the court denied the direction sought by the accused's counsel. The evidence was deemed admissible, and the trial proceeded with the witness's evidence being considered by the jury.