Where is this proven in case law or statutes?

To determine where a particular legal principle is proven in case law or statutes, one would typically reference specific legal databases, court rulings, or legislative texts. For example, landmark cases in common law can be found in judicial opinions, while statutory provisions can be located in official legal codes or legislative documents. Additionally, legal commentaries and law review articles often provide insights and citations to relevant case law and statutes. It’s essential to specify the legal issue for a more targeted response.