Lucky is on trial for the murder of his wife. The prosecution claims that Lucky committed the murder by poisoning his wife with arsenic. Lucky's defence is that his wife committed suicide. Innocent, an attorney, is called by the prosecution to testify that the accused approached him in his professional capacity for legal advice and, during their discussions, admitted to having killed his wife. Innocent subsequently declined to represent Lucky. The prosecution states that this evidence will be admissible because Lucky had told Innocent of a crime that had already been completed. Do you agree? Fully discuss with reference to the requirements for the admissibility of this type of evidence.