Remember, your best shot at ensuring a fair trial and a just verdict is to get on the jury! (fija.org)
The Crown's responsibility lies not in securing a conviction but in presenting the case for the prosecution while ensuring a fair trial for the accused: see R. v. Boucher (1954), [1955] S.C.R. 16 (S.C.C.). (gtclaw.ca)
Although evidentiary rules of all share the purpose of ensuring a fair trial based on solid evidence, they each play a different role in achieving that goal by ensuring that a guilty verdict is only based on accurate and credible evidence presented at a fair trial. (slaw.ca)