Final answer:
A plaintiff must have a direct interest in the outcome in order to bring a Charter challenge to a law in Canada.
Step-by-step explanation:
In order for a plaintiff to bring a Charter challenge to a law in Canada, they must have a direct interest in the outcome. This means that they must be directly affected or impacted by the law in question. It does not require the plaintiff to be a lawyer, have a political agenda, or be a government official.