Information within the scope of discovery need not be admissible in evidence to be discoverable if the information sought appears reasonably calculated to lead to the discovery of admissible evidence.
The party seeking discovery shall bear the burden of establishing relevance.
A party may obtain without the required showing a statement concerning the action or its subject matter previously made by that party. For purposes of this paragraph, a statement previously made is:
If a motion for protective order is denied in whole or in part, the court may, on such terms and conditions as are just, order that any party or person provide or permit discovery. The provisions of Rule 61.01 apply to the award of expenses incurred in relation to the motion.
In ruling on an objection that the discovery request creates an undue burden or expense, the court shall consider the issues in the case and the serving party's need for such information to prosecute or defend the case and may consider, among other things, the amount in controversy and the parties' relative resources in determining whether the proposed discovery burden or expense outweighs its benefit.
Mo. R. Civ. P. 56.01