MARTHA VÁZQUEZ, District Judge.
Plaintiffs filed their initial complaint on December 18, 2017, in the Fourth Judicial District Court, Guadalupe County, New Mexico, to recover damages sustained from an accident that occurred on December 17, 2016, involving a tractor trailer owned by Defendant. Doc. 1-1. The case was removed to this Court based on diversity jurisdiction on April 10, 2018. Doc. 1.
On December 31, 2019, Plaintiffs filed their First Amended Complaint, alleging three causes of action: negligence, negligence per se, and res ipsa loquitur. Doc. 36. The res ipsa loquitur claim states:
Id. at 8.
Defendant requests that the Court "dismiss with prejudice the claim of `res ipsa loquitor' [sic] because it is not a cause of action at all" and strike "all allegations relative to res ipsa loquitor [sic] . . . from the Complaint as immaterial and impertinent." Doc. 41 at 1-2.
The case was removed to this Court on diversity jurisdiction. New Mexico substantive law, therefore, controls. See Los Lobos Renewable Power, LLC v. Americulture, Inc, 885 F.3d 659, 668 (10th Cir. 2018) ("[I]n a federal diversity action, the district court applies state substantive law — those rights and remedies that bear upon the outcome of the suit—and federal procedural law — the processes or modes for enforcing those substantive rights and remedies.").
Rule 12(b)(6) of the Federal Rules of Civil Procedure permits a party to move to dismiss a cause of action for "failure to state a claim upon which relief can be granted." Fed. R. Civ. P. 12(b)(6). "The court's function on a Rule 12(b)(6) motion is not to weigh potential evidence that the parties might present at trial, but to assess whether the plaintiff's complaint alone is legally sufficient to state a claim for which relief may be granted." Smith v. United States, 561 F.3d 1090, 1098 (10th Cir. 2009) (citing Sutton v. Utah State Sch. for Deaf & Blind, 173 F.3d 1226, 1236 (10th Cir.1999)). Rule 12(f) of the Federal Rules of Civil Procedure provides that a "court may strike from a pleading an insufficient defense or any redundant, immaterial, impertinent, or scandalous matter." Fed. R. Civ. P. 12(f).
"Res ipsa loquitur is not a cause of action" — it is an evidentiary rule that permits the jury "to infer that the defendant was negligent in some unspecified way when, on the evidence adduced, there is a rational basis in common experience or expert testimony for finding (1) that the injury was probably the result of negligence, and (2) that the defendant was at least one of the persons who was probably negligent." DAN B. DOBBS ET AL., THE LAW OF TORTS § 169 (2d ed.), Westlaw (database updated June 2019).
This Court, as recently as 2017, decided this very issue in Smith v. City of Roswell:
Doc. 26 at 35 in No. 2:15-cv-01004-KG-KRS (D.N.M. May 25, 2017).
Plaintiffs, however, contend that res ipsa loquitur is a proper claim, relying on Mitchell v. Ridgway, 421 P.2d 778 (N.M. 1966), and New Mexico Civil Uniform Jury Instruction 13-1623. Doc. 45 at 4-5. Plaintiffs' reliance on such authorities is misguided.
Mitchell concerned a claim that "contained in the alternative allegations designed to invoke the benefit of res ipsa loquitur" that the "trial court dismissed . . . for failure to state a claim upon which relief could be granted and for the further reason that the rule of res ipsa loquitur was not applicable." 421 P.2d at 781. The New Mexico Supreme Court reversed, with little discussion, holding that the claim "stated a cause of action." Id. The opinion does not state what the actual claim was. But it does not appear that the claim was for res ipsa loquitur, as Plaintiffs assert, because the Court stated that the claim "contained in the alternative allegations designed to invoke the benefit of res ipsa loquitur" and twice referred to res ipsa loquitur as a rule. Id. (emphasis added).
New Mexico Civil Uniform Jury Instruction 13-1623 is titled "Circumstantial Evidence of Negligence (`Res Ipsa Loquitur')" and lays out the instruction to be used should the evidence call for it. Of note, the instruction's commentary cites Strong v. Shaw, which explains that "[res ipsa loquitur] helps to establish negligence[,] nothing else. Res ipsa loquitur is a rule of evidence, not of substantive tort law." 629 P.2d 784, 786 (N.M. Ct. App. 1980).
Plaintiffs' res ipsa loquitur cause of action fails to state a claim upon which relief may be granted. Res ipsa loquitur is an evidentiary rule, not a cause of action. Because the Court is granting Defendant's motion to dismiss Plaintiffs' cause of action for res ipsa loquitur, Defendant's alternative request that the Court strike "all allegations relative to res ipsa loquitor [sic] . . . from the Complaint as immaterial and impertinent" is moot. Doc. 41 at 2.