Final answer:
In Canada's justice system, the 'presumption of innocence' means the defendant is considered innocent until proven guilty, with the burden of proof lying on the prosecution.
Step-by-step explanation:
In Canada's justice system, the presumption of innocence means that the defendant is innocent until proven guilty. This is a fundamental principle that places the burden of proof on the prosecution, which must establish the defendant's guilt beyond a reasonable doubt. The defense's role is to challenge the prosecution's case and maintain their client's innocence. The defendant does not need to prove innocence, as the default legal position is that one is innocent unless proven otherwise.