to quash the subpoena. First, the district court determined that the "clearly erroneous" or "contrary to law" standard applied to its review of the Magistrate Judge's ruling because the motion to quash was a non-dispositive pretrial matter. Then, emphasizing that this Court had held numerous times that the Lethal Injection Secrecy Act precluded disclosure of similar information to a condemned inmate, the district court concluded that the Magistrate Judge's ruling was neither clearly erroneous nor contrary to law.
Plaintiffs appeal, arguing that (1) the district court applied the wrong standard of review to the Magistrate Judge's ruling and (2) the motion to quash should have been denied on the merits.
STANDARD OF REVIEW
We review the district court's ruling on the GDC's motion to quash "only for an abuse of discretion." In re Hubbard, 803 F.3d 1298, 1307 (11th Cir. 2015) (citing Ariel v. Jones, 693 F.2d 1058, 1060 (11th Cir. 1982) ). Thus, we will leave the district court's ruling on the motion "undisturbed" unless the district court has "made a clear error of judgment, or has applied the wrong legal standard." Ameritas Variable Life Ins. Co. v. Roach, 411 F.3d 1328, 1330 (11th Cir. 2005) ; see also SunAmerica Corp. v. Sun Life Assurance Co. of Canada, 77 F.3d 1325, 1333 (11th Cir. 1996) (noting that an abuse of discretion occurs when the district court makes "a clear error of judgment" or applies "an incorrect legal standard" (internal quotation marks omitted) ).
DISCUSSION
I. The district court applied the correct standard of review to the Magistrate Judge's ruling on the motion to quash.
As discussed, the district court reviewed the Magistrate Judge's ruling on the motion to quash under the "clearly erroneous" or "contrary to law" standard. According to Plaintiffs, the district court should have reviewed the Magistrate Judge's ruling de novo, and its failure to do so requires reversal under the Federal Magistrate's Act, 28 U.S.C. § 636, and Rule 72 of the Federal Rules of Civil Procedure.
The standard of review the district court was required to apply depends on whether we characterize the GDC's motion to quash as a dispositive or a non-dispositive matter. See Fed. R. Civ. P. 72. Under the Federal Magistrate's Act, a district court "may designate a magistrate judge to hear and determine any pretrial matter pending before the court." 28 U.S.C. § 636(b)(1)(A). If the matter is non-dispositive, the district court reviews the magistrate judge's ruling under the "clearly erroneous or contrary to law" standard. Id.; see also Fed. R. Civ. P. 72(a) ("When a pretrial matter not dispositive of a party's claim or defense is referred to a magistrate judge to hear and decide .... [t]he district judge in the case must consider timely objections and modify or set aside any part of the order that is clearly erroneous or is contrary to law."). But if the matter is dispositive, the district court must review any objected-to portion of the magistrate judge's ruling de novo. 28 U.S.C. § 636(b)(1).
The Federal Magistrate's Act lists several examples of motions that qualify as dispositive matters, including motions for injunctive relief, for judgment on the pleadings, for summary judgment, to dismiss or quash an indictment, to suppress evidence in a criminal case, to dismiss or permit maintenance of a class action, to dismiss for failure to state a claim, and to involuntarily dismiss an action. Id. As evidenced by the motions included in this list, a routine pretrial discovery motion, such as the motion to quash at issue in this