What will be the extent of that discretion? That is the question.
We think that clause 20 is important because it sets out parameters. In Canada, crimes are codified. We have the Criminal Code. These types of decisions are not made under the common law.
In civil court, judges can render their decisions under the common law, and court decisions establish the rules. However, that is not the case in criminal law. In our society, we have determined what should come under criminal law. We have determined what actions would be seen as crimes and be punished.
Is it a step backwards to give judges a great deal of discretion to enable them to interpret cases? Clause 20 will enable judges to have witnesses come before them, to interpret cases and render a decision.
What will this lead to? In reality, their rulings will be limited. The proceedings will be limited, and judges will have to comply with this provision, without, however, having all the discretion common law grants them.
This is what I think, although I am not a legal expert.