opinion of the Court:
¶ 1 The State challenges a decision of the court of appeals reversing the district court's denial of William Dominguer's motion to suppress evidence obtained pursuant to a warrant authorizing a blood draw. The court of
I
¶ 2 Shortly after 1:00 a.m. on June 8, 2007, Utah Highway Patrol Trooper Chris Turley pulled William Dominguez over for racing with another car. In speaking with Dominguez, Turley noticed that Dominguez "had red, bloodshot, glassy looking eyes" and "that his speech was noticeably slurred." When a records check revealed that Dominguezr's driver's license had been revoked for aleohol-related offenses, Turley arrested him. Tur-ley reported that during the course of the arrest he smelled a "strong odor" of alcohol on Dominguez's breath. Turley asked Dominguez to blow into a portable breathalyzer, but Dominguez refused. He also refused to submit to field sobriety tests.
¶ 3 After transporting Dominguez to the police station, Turley prepared a written affidavit in support of a search warrant authorizing a blood draw. Shortly after 2:00 a.m., Turley telephoned Judge Brent West and informed him of the reason for the stop, "all of the clues [he] observed," and the arrest. After being placed under oath, Turley read the probable cause statement contained in the written affidavit. Turley testified that he did not read every line of the affidavit, but that he read the following portion "establishing the grounds for issuance of [the] search warrant":
On June 3[,] 2007, at approximately [1:02 am.], I observed a red Honda Civic ... racing a silver passenger car. The vehicle was stopped by the activation of my emer-geney lights. I approached the vehicle and William Dominguez was in the driver seat not wearing a seat belt. Dominguez had red, bloodshot, glassy looking eyes. As I spoke with Dominguez, I noticed that his speech was noticeably slurred. I conducted a records check on Dominguez using his name and date of birth. This information revealed that Dominguez had a[n] alcohol[-Jrevoked license and was an alcohol[-]restricted driver. Dominguez denied consuming any alcohol. I placed Dominguez under arrest and could smell a strong odor of an alcohol beverage coming from his breath in the open air.
I requested Dominguez blow into a portable breath tester[;] however he refused to blow. When asked if he would allow me to conduct [a] field sobriety test, Dominguez said no and that he had been through this before. Dominguez refused to submit to any DUI field sobriety tests. I read Dominguez his DUI admonitions 1 advising him of the consequences of not submitting to my tests. Dominguez still would not cooperate and refused to give a chemical test.
Dominguez has at least 4 prior DUI convictions in the past 10 years and he is currently on parole for a felony DUI conviction.
At the direction of the magistrate, Turley signed the magistrate's name to the warrant authorizing the blood draw at 2:27 a.m. 2
¶ 5 Dominguez was charged with driving under the influence of alcohol, driving with aleohol in his body with a no-aleohol license, driving on a revoked license, driving a vehicle without proof of insurance, and engaging in a speed contest or exhibition. Dominguez filed a motion to suppress evidence, arguing that the warrant had been issued in violation of Rule 400G)(1) of the Utah Rules of Criminal Procedure, which requires a magistrate, "(alt the time of issuance, ... [to] retain and seal a copy of the search warrant, the application and all affidavits or other recorded testimony on which the warrant [was] based." Dominguez did not challenge the probable cause element or the truth of any of the evidence contained in Turley's affidavit. See State v. Domingues,
¶ 6 The district court denied Dominguez's motion to suppress, and Dominguez entered a conditional plea to driving under the influence. Dominguez appealed.
¶ 7 The court of appeals reversed. It treated the appeal as presenting two questions: (1) "whether there was an error" in the application of Rule 40)(1), and (2), if so, "whether the error caused harm sufficient to merit suppressing the evidence." Id. ¶ 5.
¶ 8 As to the first question, the court of appeals concluded that the magistrate's failure to "make and keep a copy of the search warrant and supporting documents" violated Rule 40. Id. ¶ 11. As to the second question, the court noted that Rule had been implemented in direct response to this court's decision in Anderson v. Taylor, which mandated retention and filing of warrants and warrant-application materials and testimony by the warrant-issuing magistrate.
¶ 9 On certiorari, we review the decision of the court of appeals for correctness. State v. Visser,
II
¶ 10 Rule 40)(1) requires the magistrate, "[alt the time of issuance" of a search warrant, to "retain and seal a copy of the search warrant, the application and all affidavits or other recorded testimony on which the warrant is based" and to "file those sealed documents in court files which are secured against access by the public." UtaH R.Crim. P. 4000)(1). This rule implements our holding in Anderson v. Taylor,
after issuing a warrant, the issuing magistrate return[ed] both the warrant and the supporting material to the law enforce ment officer seeking the warrant. After the warrant [was] executed, the officer deliver[(ed] the original warrant, the supporting material, the return, and the inventory of items seized in the search to the magistrate, who then review[ed] it and either filed] it with the court or returned] it to law enforcement with a request that law enforcement file it with the court.
Id. ¶ 2.
¶ 11 In Anderson, we found this practice "sufficiently troubling" to warrant the exercise of our "inherent supervisory authority over all courts of this state." Id. ¶ 20 (internal quotation marks omitted). We accordingly held that "magistrates issuing search warrants" are required to "retain in their custody copies of all search warrants issued, as well as the material supporting search warrant applications, rather than surrendering to law enforcement the only copies of such material." Id. ¶ 22.
¶ 12 We were concerned in Anderson with "[gliving law enforcement sole custody of all affidavits and warrants up through the point where the warrant has been executed and a return filed," for two reasons:
First, it leaves the court without any ree-ord of the [warrant] or the materials supporting its issuance until after the [warrant] is executed and a return filed. Second, it allows for the possibility that affidavits and other court records may be mishandled or even altered without detection. When the records upon which the magistrate acts in issuing a warrant are handled by persons other than court personnel prior to being filed with the court, the court has no basis for confidence in the accuracy, authenticity, or completeness of those documents.
Id.
¶ 13 Despite our discomfort with the district- court's prior practice, we declined in Anderson "to prescribe the particular procedures to be followed in maintaining and disclosing such records." Id. 128. Nor did we provide a remedy in the event a magistrate fails to retain warrant records. Instead, we referred the matter to our Advisory Committee on the Rules of Criminal Procedure. Id. The committee proposed Rule 40(), which we adopted on April 30, 2007, less than five months after our decision in Anderson. See Urag R.Orim. P. 40(i)(1) advisory committee's note (i). In so doing, we left in place other provisions of Rule 40, including a provision that allows for remotely communicated search warrants, like the one requested by Officer Turley, 3 and requirements that the "testimony and content of the warrant ... be recorded" 4 and "be retained by and filed with the court." 5
¶ 14 The State argues that the recording requirement of Rule 40(0)(2) was satisfied when Trooper Turley reduced the search warrant affidavit to writing, because a recording "includes the original recording of testimony," id. 40(a)(2) (emphasis added), and may be "by writing," id. 40(F)(2). The State further argues that the availability of a telephonic warrant in Rule 40(¢) implicitly exeused compliance with Rule 40() because magistrates generally have no means of retaining and documenting the warrant and affidavit when they are contacted at home in the middle of the night. Anderson did not address telephonic warrants, leaving the drafters of Rule 40(1), the State argues, with no clear method of reconciling them with this court's retention mandate. -
¶ 15 The court of appeals acknowledged that Rule 40(F )(2) "does not specify by whom the recording must be made." Dominguez,
¶ 6 We agree with the court of appeals that it is insufficient for the officer to retain search-warrant materials only to subsequently provide them to the court. This does not resolve the question, however, of whether an officer's affidavit could qualify as a recording under Rule 40(a)(2), assuming, of course, that the officer provides the affidavit to the magistrate "[alt the time of issuance" of the search warrant. We need not determine that question in this case. Regardless of whether Turley's written affidavit satisfies the record
TII
117 Our finding of error still leaves open the question of the appropriate remedy. That question is not resolved by Anderson, which addressed only the substance of the retention requirement and not the remedy for its violation. The remedy of suppression is not required in this case under the Fourth Amendment to the United States Constitution or under state law. We accordingly reverse the determination of the court of appeals requiring suppression of the results of Dominguer's toxicology test.
A
118 " [{Wlhether or not a search is reasonable within the meaning of the Fourth Amendment' ... has never 'depend[ed] on the law of the particular State in which the search occurs.'" Virginia v. Moore,
YT19 Dominguez argues that the warrant-retention requirements of Rule 40(i)(1) are compelled by the Fourth Amendment, and that the magistrate's failure to retain the warrant materials in this case violated the Fourth Amendment and triggered the exclusionary rule. Dominguez fails to cite any authority for the proposition that the retention requirement articulated in Anderson and adopted in Rule 40 is mandated by the Fourth Amendment. We decline to so hold now. The Fourth Amendment's protection "against unreasonable searches and seizures" encompasses the core requirements of a reasonable search and of probable cause for an arrest. See New Jersey v. T.L.O.,
¶ 20 Here, Dominguez has alleged no misconduct on the part of Trooper Turley. He complains only that the magistrate failed to comply with Rule 40(1)(1). Everything Tur-ley did was authorized by the rules: securing a telephonic warrant, R.CrIM P. signing the magistrate's name to the warrant, id. and filing a return the next morning, id. 40(g). 6 Dominguez has not asserted that Turley was even aware that the magistrate was not recording the warrant application. For these reasons, we have no reason to conclude that Turley did anything warranting suppression under the Fourth Amendment, and no basis for imposing the strong remedy of suppression for a magistrate's failure to comply with the prophylactic requirements of Rule 40.
B
¶ 21 Under Rule 80(a) of the Utah Rules of Criminal Procedure, "[alny error, defect, irregularity or variance which does not affect the substantial rights of a party shall be disregarded." We applied this rule in State v. Anderton,
¶ 22 Elsewhere, we have construed Rule 30(a) to foreclose reversal of a conviction "unless the error is substantial and prejudicial in the sense that there is a reasonable likelihood that in its absence there would have been a more favorable result for the defendant." State v. Johnson,
¶ 23 This conclusion is consistent with federal case law examining judicial error under the federal counterpart to Rule 40, Federal Rule of Criminal Procedure 41. The vast majority of federal courts that have examined Rule 41 violations have concluded that suppression for judicial error in the application of Rule 41 is not warranted absent a showing of prejudice or evidence of intentional and deliberate disregard of a provision of the rule by police. 7
¶ 25 Dominguez cites five cases from other jurisdictions in support of his position that a Rule 400)(1) violation requires suppression: Arizona v. Boniface,
¶ 27 Dominguez has not challenged the veracity of Trooper Turley's affidavit, in which Turley described his reasons for stopping and arresting Dominguez: Dominguez's racing with another driver; his "red, bloodshot, glassy looking eyes"; his slurred speech; his alcohol-odorous breath; his history of alcohol-related offenses; and his refusal to submit to a breath test. As the United States Supreme Court has noted, "[tlhere is ... a presumption of validity with respect to the affidavit supporting [a] search warrant." Franks v. Delaware,
¶ 28 Instead of challenging Turley's affidavit, Dominguez argues that suppression is warranted because the Rule 40 violation deprived him of the ability to meaningfully evaluate "the existence or nonexistence of prejudice." At bottom, Dominguez complains that he has no way of knowing what, if anything, to challenge, and that we accordingly should suppress the evidence seized as a result of the warrant. Yet Dominguez was hardly without options. If he believed the affidavit was inaccurate, contained false statements, or had been tampered with, he could have sought a hearing as provided by Franks v. Delaware. See
129 In testifying at a Franks hearing, Dominguez would not have had to "forfeit his Fifth Amendment right to remain silent," as the court of appeals concluded. State v. Dominguez,
¶ 30 Because Dominguez made no attempt to challenge the affidavit, he implicitly conceded its truth. "[In the absence of any contention" that the magistrate's error "in any way infringed upon [Dominguer's] substantial rights," we are "obliged to disregard" the error "by reason of the content of Rule 80." Anderton,
IV
131 The magistrate's Rule 40@)(1) violation does not require suppression in this case under federal or state law. Accordingly, we reverse the judgment of the court of appeals.
Notes
. "A person operating a motor vehicle" in Utah "is considered to have given the person's consent to a chemical test or tests of the person's breath, blood, urine, or oral fluids" to determine whether the individual is operating the vehicle under the influence of drugs or alcohol. Urar CopE Ani. § 41-6a-520(1)(a) (2010). A police officer requesting such tests
shall warn a person that refusal to submit to the test or tests may result in revocation of the person's license to operate a motor vehicle, a five or ten-year prohibition of driving with any measurable or detectable amount of alcohol in the person's body depending on the person's prior driving history, and a three-year prohibition of driving without an ignition interlock device if the person:
i) has been placed under arrest;
(ii) has then been requested by a peace officer to submit to any one or more of the chemical tests under Subsection (1); and
(iii) refuses to submit to any chemical test requested.
Id. § 41-6a-520(2)(a).
. "Upon approval, the magistrate may direct the peace officer ... requesting a warrant from a remote location to sign the magistrate's name on a warrant at a remote location." Urax R.Crm. P. 40(Z )(4).
. Rule 40(I)(1) of the Utah Rules of Criminal Procedure provides:
When reasonable under the circumstances, a search warrant may be issued upon sworn or affirmed testimony of a person who is not in the physical presence of the magistrate, provided the magistrate is satisfied that probable cause exists for the issuance of the warrant. All communication between the magistrate and the peace officer or prosecuting attorney requesting the warrant may be remotely transmitted by voice, image, text, or any combination of those, or by other means.
. Rule of the Utah Rules of Criminal Procedure provides: "All testimony upon which the magistrate relies for a finding of probable cause shall be on oath or affirmation. The testimony and content of the warrant shall be recorded. Recording shall be by writing or by mechanical, magnetic, electronic, photographic storage or by other means."
. Id. 40(l)(5).
. Rule 40(g) of the Utah Rules of Criminal Procedure provides: "The officer, after execution of the warrant, shall promptly make a signed return of the warrant to a magistrate of the issuing court and deliver a written or recorded inventory of anything seized, stating the place where it is being held."
. See United States v. Antrim,
. The word "immediately" has since been removed from the rule. See Frp.R.CrmP. 41(d)(3)(B).
. See Reep,
. See State v. Rodriguez,
