(B) the subject matter of the expected action and the petitioner’s interest;
(C) the facts that the petitioner wants to establish by the proposed testimony and the reasons to perpetuate it;
(D) the names or a description of the persons whom the petitioner expects to be adverse parties and their addresses, so far as known; and
(E) the name, address, and expected substance of the testimony of each deponent.
(3) Order and Examination. If satisfied that perpetuating the testimony may prevent a failure or delay of justice, the court must issue an order that designates or describes the persons whose depositions may be taken, specifies the subject matter of the examinations, and states whether the depositions will be taken orally or by written interrogatories. The depositions may then be taken under these rules, and the court may issue orders like those authorized by Rules 34 and 35. A reference in these rules to the court where an action is pending means, for purposes of this rule, the court where the petition for the deposition was filed.
(4) Using the Deposition. A deposition to perpetuate testimony may be used under Rule 32(a) in any later-filed district court action involving the same subject matter if the deposition either was taken under these rules or, although not so taken, would be admissible in evidence in the courts of the state where it was taken.
(2) Motion. The party who wants to perpetuate testimony may move for leave to take the depositions, on the same notice and service as if the action were pending in the district court. The motion must show:
(B) the reasons for perpetuating the testimony.
US Supreme Court // ©
(As amended Dec. 27, 1946, eff. Mar. 19, 1948; Dec. 29, 1948, eff. Oct. 20, 1949; Mar. 1, 1971, eff. July 1, 1971; Mar. 2, 1987, eff. Aug. 1, 1987; Apr. 25, 2005, eff. Dec. 1, 2005; Apr. 30, 2007, eff. Dec. 1, 2007; Mar. 26, 2009, eff. Dec. 1, 2009.)