This standard guides the scope of permissible inquiry during legal proceedings. It permits exploration into areas that, while not directly presenting usable proof, hold the potential to uncover information that is both relevant to the case and legally presentable in court. For example, a request for documents relating to a specific project, even if some of the documents themselves are ultimately deemed inadmissible, is justifiable if examining those documents might reveal other records or witness testimony that would be accepted as evidence.
Its significance lies in ensuring that the search for truth is not unduly restricted. It acknowledges that the path to definitive proof is often indirect and requires a degree of flexibility in the investigative process. Historically, this concept evolved to balance the need for thorough investigation with the protection against overly broad and intrusive demands for information. It prevents parties from using discovery as a fishing expedition while still enabling them to pursue legitimate avenues of inquiry.
