
515 S.E.2d 452 (1999)
Johnny Richard GIBSON, Petitioner/Appellant,
v.
Janice FAULKNER, Commissioner North Carolina Division of Motor Vehicles, Respondent/Appellee.
No. COA98-712.
Court of Appeals of North Carolina.
April 6, 1999.
*454 Hyler Lopez & Walton, P.A., by George B. Hyler, Jr., and Robert J. Lopez, Asheville, for petitioner appellant.
Attorney General Michael F. Easley, by Associate Attorney General Jeffrey R. Edwards, for respondent appellee.
HORTON, Judge.
Petitioner contends the trial court erred in, among other things, (I) concluding, as a matter of law, that Trooper Silver had reasonable grounds to believe that petitioner committed an implied consent offense; (II) finding as fact that petitioner had been advised of his rights under the appropriate statute; (III) concluding, as a matter of law, that petitioner wilfully refused to submit to a chemical analysis upon the request of Trooper Silver; and (IV) finding that DMV could proceed to revoke petitioner's driver's license, despite petitioner being found not guilty of the related criminal offenses in district court.

I. Reasonable Grounds Based on Hearsay Evidence
Defendant contends that the trial court erred in concluding as a matter of law that Trooper Silver had "reasonable grounds" to believe that petitioner committed an implied consent offense. Petitioner claims that Trooper Silver based his arrest upon hearsay information submitted to him by Deputy Reece, and that such hearsay testimony is inadmissible in court. Petitioner asks this Court to review its holding in Melton v. Hodges, 114 N.C.App. 795, 443 S.E.2d 83 (1994), that "reasonable grounds for belief may be based upon information given to the officer by another, the source of the information being reasonably reliable, and it is immaterial that the hearsay information itself may not be competent in evidence at the [criminal] trial of the person arrested." Id. at 798, 443 S.E.2d at 85.
We are bound by our holding in Melton. "Where a panel of the Court of Appeals has decided the same issue, albeit in a different case, a subsequent panel of the same court is bound by that precedent, unless it has been overturned by a higher court." In the Matter of Appeal from Civil Penalty, 324 N.C. 373, 384, 379 S.E.2d 30, 37 (1989). Since our ruling in Melton has not been overturned by a higher court, it is binding upon this panel. This assignment of error is overruled.

II. Advice of Chemical Test Rights
Petitioner argues that the trial court erred in determining that he had been advised of his rights under the appropriate statute. Petitioner relies on the following excerpt from the transcript of proceedings before the trial court, and argues that Trooper Silver advised him of his rights under the incorrect statute:
Q [District Attorney]: At that point did you advise Mr. Gibson of his rights pursuant to GS20-16.2b?
A [Trooper Silver]: Yes, sir, I did.
Q [District Attorney]: Did you advise him of those rights orally?
A [Trooper Silver]: Yes, sir.
Q [District Attorney]: Did you make a written copy of the rights read to him
A [Trooper Silver]: Yes, sir. Yes, sir, I did.
Q [District Attorney]: Did he indicate to you whether or not he understood those rights?
A [Trooper Silver]: Yes, sir, he did.
Q [District Attorney]: Did you present him with the written rights form and ask him to sign it?
A [Trooper Silver]: Yes, sir, I did.
Q [District Attorney]: Did he sign it?
A [Trooper Silver]: No, sir, he refused.
Q [District Attorney]: After you advised him of his rights, did he exercise his right to call a witness or to speak with an attorney?
A [Trooper Silver]: Yes, sir. He exercised that right and he used the phone.
*455 Petitioner contends that the rights to which he was entitled to be advised are actually found in N.C.Gen.Stat. § 20-16.2(a), and that based on Trooper Silver's testimony the trial court did not have competent evidence to conclude as a matter of law that petitioner had been properly advised of his rights. We disagree.
Where the trial judge sits as the trier of fact, "[t]he court's findings of fact are conclusive on appeal if supported by competent evidence, even though there may be evidence to the contrary." Gilbert Engineering Co. v. City of Asheville, 74 N.C.App. 350, 364, 328 S.E.2d 849, 858, disc. review denied, 314 N.C. 329, 333 S.E.2d 485 (1985). In the case before us, we find there was competent evidence to support the trial judge's findings of fact. We note that N.C.Gen.Stat. § 20-16.2(b) does not even contain a recital of rights. Further, the written form referred to by Trooper Silver appears of record as an exhibit at the hearing in this matter. The written form, which the petitioner understood but refused to sign, sets out in detail the rights found in N.C.Gen.Stat. § 20-16.2(a). One of the rights enumerated in N.C.Gen.Stat. § 20-16.2(a) is the right to telephone an attorney and select a witness to view the testing procedure. The written notice of rights indicates that Trooper Silver advised petitioner of his rights at 10:10 p.m., and that petitioner called an attorney or witness at 10:11 p.m. The conduct of the petitioner in making telephone calls immediately after being advised that he had the right to do so supports the finding of the trial court that petitioner was fully advised of his rights under the correct statutory section. There is other competent evidence of record in the form of the Affidavit signed and filed by Trooper Silver affirming that he advised the petitioner of his rights pursuant to N.C.Gen. Stat. § 20-16.2(a). The reference in the district attorney's question to advising petitioner of his rights under N.C.Gen.Stat. § 20-16.2(b ) rather than (a ) appears to be either a transcription error or a mere lapsus linguae by the district attorney. See State v. Kandies, 342 N.C. 419, 445, 467 S.E.2d 67, 81, cert. denied, 519 U.S. 894, 117 S.Ct. 237, 136 L.Ed.2d 167 (1996). In any event, there was other competent evidence to support the trial court's findings of fact, and those findings support its conclusion of law that petitioner had been advised of his rights under N.C.Gen.Stat. § 20-16.2(a). Petitioner's assignment of error is overruled.

III. Willful Refusal
Petitioner next contends that the trial court erred in concluding, as a matter of law, that he willfully refused to submit to a chemical analysis upon request of the officer. N.C.Gen.Stat. § 20-139.1(b3) provides, among other things, that
[a] person's willful refusal to give the sequential breath samples necessary to constitute a valid chemical analysis is a willful refusal....
Petitioner does not contend that he actually furnished the sequential breath samples requested of him by the trooper. He argues, however, that to constitute a "valid chemical analysis" N.C.Gen.Stat. § 20-139.1(b) requires that the test be "performed according to methods approved by the Commission for Health Services and by an individual possessing a valid permit" for that type of chemical analysis. State v. Gray, 28 N.C.App. 506, 507, 221 S.E.2d 765, 765 (1976). He argues that "[t]he burden of proving compliance with G.S. 20-139.1(b) lies with the State[,]" id., and that, in the case sub judice, "[t]he failure of the State to produce evidence of the test operator's compliance with G.S. 20-139.1(b) must be deemed prejudicial error." Id. at 506, 221 S.E.2d at 765.
Our holding in Gray addressed the issue of admitting the results of the chemical test into evidence in a criminal proceeding. The administrative hearing referred to in N.C.Gen. Stat. § 20-16.2(d) addresses the issue of revoking one's driving privilege based upon a willful refusal to submit to a chemical analysis, and is in the nature of a civil proceeding. N.C.Gen.Stat. § 20-16.2(d) lists five issues to be considered in the hearing:
The hearing must be conducted in the county where the charge was brought, and must be limited to consideration of whether:
(1) The person was charged with an implied-consent offense;

*456 (2) The charging officer had reasonable grounds to believe that the person had committed an implied-consent offense;
(3) The implied-consent offense charged involved death or critical injury to another person, if this allegation is in the affidavit;
(4) The person was notified of his or her rights as required by subsection (a); and
(5) The person willfully refused to submit to a chemical analysis upon the request of the charging officer.
Since the gist of the revocation proceeding is to determine whether a person willfully refused to submit to a chemical analysis, it is irrelevant in the civil proceeding whether the test was performed according to the applicable rules and regulations. In the case before us, there is competent evidence that petitioner refused to give sequential breath samples, and this evidence supports the trial judge's conclusion that petitioner's conduct constituted willful refusal under N.C.Gen.Stat. § 20-139.1(b3). Petitioner's assignment of error is overruled.

IV. Collateral Estoppel
Petitioner contends the trial court erred in finding that DMV could revoke his driving privilege, since he was found not guilty in the district court criminal proceeding. Our courts have confronted this issue before and held that
[u]nder implied consent statutes such as G.S. 20-16.2, the general rule is that neither an acquittal of a criminal charge of operating a motor vehicle while under the influence of intoxicating liquor, nor a plea of guilty, nor a conviction has any bearing upon a proceeding before the licensing agency for the revocation of a driver's license for a refusal to submit to a chemical test. "It is well established that the same motor vehicle operation may give rise to two separate and distinct proceedings. One is a civil and administrative licensing procedure instituted by the Director of Motor Vehicles to determine whether a person's privilege to drive is revoked. The other is a criminal action instituted in the appropriate court to determine whether a crime has been committed. Each action proceeds independently of the other, and the outcome of one is of no consequence to the other."
Joyner v. Garrett, Comr. of Motor Vehicles, 279 N.C. 226, 238, 182 S.E.2d 553, 562 (citations omitted), reh'g denied, 279 N.C. 397, 183 S.E.2d 241 (1971).
Petitioner argues that his acquittal in criminal court collaterally estops DMV from relitigating at the administrative hearing the existence of reasonable grounds to believe he was driving while impaired. In support of his argument, petitioner relies on Brower v. Killens, 122 N.C.App. 685, 472 S.E.2d 33, disc. review allowed, 344 N.C. 435, 476 S.E.2d 112 (1996), disc. review improvidently allowed, 345 N.C. 625, 481 S.E.2d 86 (1997). In Brower, we held that DMV was collaterally estopped from relitigating in a license revocation hearing the determination of "no probable cause" by the district court in a related criminal proceeding. Id. at 690, 472 S.E.2d at 37. Petitioner argues that it logically follows from the finding of not guilty in district criminal court that Trooper Silver had no probable cause to believe he had committed an implied consent offense. We find petitioner's argument to be without merit.
We first note that "there is no legal distinction between probable cause to arrest in a criminal proceeding and `reasonable grounds to believe' that the accused was driving while impaired in a license revocation hearing." Id. However, "beyond a reasonable doubt" and "probable cause" are two different standards applied at different stages of a criminal prosecution. To arrest petitioner, Trooper Silver needed probable cause to believe that he committed an implied consent offense. To convict petitioner of the charge of driving while impaired, the State was required to prove its case beyond a reasonable doubt, and the verdict of not guilty indicates that the district court judge did not find that the State met its burden. Despite the criminal verdict, however, there is competent evidence to support the finding of the trial court in the case before us that Trooper Silver had probable cause to believe petitioner committed an implied consent offense. *457 Consistent with the holding in Joyner, we hold that petitioner's acquittal of the criminal charge of operating a motor vehicle while under the influence of intoxicating liquor does not estop DMV from revoking his driving privilege based on his willful refusal to submit to sequential breath tests. This assignment of error is overruled.
We have carefully reviewed and considered petitioner's other arguments and assignments of error and find them to be without merit. Petitioner had a fair hearing, free from prejudicial error.
Affirmed.
Judges GREENE and LEWIS concur.
