The leading case on applications of this nature concerning the questions of relevancy and fishing is Dufault v. Stevens. Relevancy in that case is defined as documents which may, not must, lead to an inquiry which may damage the plaintiff's case or improve the defence's case. Specifically, in Dufault v. Stevens and the cases that follow, fishing expeditions are not allowed if there is no basis for them.
"The most advanced legal research software ever built."
The above passage should not be considered legal advice. Reliable answers to complex legal questions require comprehensive research memos. To learn more visit www.alexi.com.