[¶ 1] Shirlеy Moulton appeals from the judgment entered in the Superior Court (Waldo County, Kravchuk, J.) following her conviction for operating under the influence (Class D) in violation of 29-A M.R.S.A. § 2411 (1996 & Supp.1996). 1 On appeal Moulton contends that the District Court (Belfast, Staples, J.) erred in denying her motion to suppress the evidence derived from an investigatory stop, and that the Superior Court erred in admitting testimony at trial concerning the horizontal gaze nystagmus test administered by the arresting officer during the stop. We affirm the judgment.
I.
[¶ 2] At 12:30 a.m. on September 16, 1995, while on routine patrol in a marked police cruiser in Belfast, State Trooper Thomas Ballard observed a car with its motor running and its lights on stopped in the roadway in front of the Legion Hall. Noting that the car was blocking the travel lane and was next to a “no parking” sign, Ballard pulled his cruiser alongside the car without activating the cruiser’s blue lights. He looked through his passenger side window into the stopped car, where he observed Shirley Moulton in the driver’s seat and a male passenger kneeling on the front seat and leaning over Moul-ton. She looked at Ballard with a “confused or dazed” expression.
[¶3] Ballard stepped out of his cruiser, approached the stoрped car, and asked Moul-ton if her car was disabled and whether she needed help. Moulton responded that she was okay. Ballard immediately smelled a strong odor of alcohol coming from inside the car, and observed that Moulton’s speech was slurred and that her eyes were glаssy and red. He then asked for her license and registration and requested that she step out of the car. After repositioning his cruiser and activating its blue lights, Ballard asked Moulton to perform four field sobriety tests, including the horizontal gaze nystagmus (HGN) test, 2 each of which she performed *363 poorly. On the basis of these field sobriety tests and his other observations of Moulton, Ballard arrested Moulton for operating under the influence.
[¶ 4] After entering a not guilty plea at her arraignment, Moulton filed a motion to suppress all evidence derived from the stop, arguing in part that Ballard lacked a reasonable suspicion to justify the stop. The court denied the motion, finding that no seizure had occurred until Ballard requested Moul-ton to produce her license and registration, at which time he did have a reasonable suspicion to justify the stop. After transferring her case to the Superior Court for a jury trial, Moulton objectеd at trial to the admission of testimony by Ballard concerning the HGN test, arguing that its reliability had not been established. The court overruled her objection, finding that 29-A M.R.S.A. § 2525 (1996) authorized admission of Ballard’s HGN testimony, notwithstanding the absence of any showing of reliability. After establishing that he was properly certified in drug recognition pursuant to statute, Ballard testified about Moulton’s poor performance on the HGN test.
[¶ 5] The court entered a judgment on a jury verdict finding Moulton guilty of operating under the influence in violation of 29-A M.R.S.A. § 2411, and this appeal followed.
II.
[¶ 6] Moulton argues that the court erred as a matter of law in determining that she was not seized at the time Ballard pulled his cruiser alongside her car. We will not disturb the court’s decision unless we find errors of law or clearly erroneous findings of fact.
See State v. Stade,
[¶ 7] An encounter between a police officer and a citizen implicates the Fourth Amendment only if the officer “seizes” the citizen.
See State v. Laplante,
[¶8] We recognize, however, that “not all personal intercourse betweеn policemen and citizens” is a seizure within the meaning of the Fourth Amendment.
See Terry v. Ohio,
[¶ 9] Applying these principles to the uncontroverted facts of this ease, we cоn- *364 elude that the court did not err in its determination of when the seizure occurred. Upon observing a lone car with its lights on and its engine running stopped in the travel lane after midnight, Ballard placed his cruiser alongside it and approached the driver to ask if she needed assistance. He did not rеstrict Moulton’s ability to leave by blocking her car, nor did he signal his authority over her by activating his cruiser’s blue lights. Ballard’s status as a police officer did not automatically transform his roadside inquiry into a “show of authority” or a “restraint of liberty” implicating constitutional protections. Under these cirсumstances, we agree that no seizure occurred until Ballard requested Moulton to produce her license and registration. 3
[¶ 10] Finally, we conclude that the court did not err in finding that Ballard’s investigatory detention of Moulton for suspicion of operating under the influence was justified. In order to justify an investigatory detention short of formal arrest, a law enforcement officer must act on the basis of “specific and articulable facts which, taken together with rational inferences from those facts, reasonably warrant that intrusion.”
Griffin,
III.
[¶ 11] Moulton next contends that the Superior Court erred in allowing Ballard to testify about the horizontal gaze nystagmus test he administered during the stop. In overruling Moulton’s objection to the admission of the HGN testimony, the court relied expressly and exclusively on 29-A M.R.S.A. § 2525 (1996), and made no independent findings regarding the test’s reliability. Entitled “Drug Impairmеnt Assessment,” section 2525 provides in pertinent part:
1. Submission to test required. If a drug recognition technician 4 has probable cause to believe that a person is under the influence of a specific category of drug, a combination of specific categories of drugs or a сombination of alcohol and one or more specific categories of drugs, that person must submit to a blood or urine test selected by the drug recognition technician to confirm that person’s category of drug use and determine drug concentration.
2. Admissibility of evidence. If a law enforcement officer certified as a drug recognition technician ... conducts a drug impairment assessment, the officer’s testimony about that assessment is admissible in court as evidence of operating under the influence of intoxicants. Failure to comply with any provision of this sectiоn does not, by itself, result in the exclusion of test results, unless the evidence is determined to be not sufficiently reliable.
Id. Thus, section 2525(2) permits a certified drug recognition technician to testify about a “drug impairment assessment” as evidence of “operating under the influence of intoxicants.” 5
[¶ 12] In opрosing Moulton’s objection to the admission of the HGN testimony, the State argued that Ballard was a certified drug recognition technician; that his HGN test constituted a valid “drug impairment assessment” within the meaning of subsection (1); and that his testimony concerning *365 the HGN test was admissible without regard to reliability as evidenсe of operating under the influence of intoxicants pursuant to subsection (2). The court agreed with this interpretation of section 2525.
[¶ 13] Moulton argues, however, that subsection (l)’s mandatory testing provision is triggered only if a certified drug recognition officer has probable cause to believe that a person is under the influence of a drug or drugs, not alcohol alone. The statutory definition of “drugs,” she argues, does not include alcohol. Based on her conclusion that alcohol alone is not a type of intoxicant contemplated by subsection (l)’s mandatory testing provision, she contends that subsection (2)’s admissibility provision is inapplicable to her case, in which there was no suspicion of drug use.
[¶ 14] In construing a statute, we first look to the plain meaning of the statutory language to give effect to legislative intent; only if the meaning of the statute is unclear will we examine other indicia of legislative intent.
See Pelletier v. Fort Kent Golf Club,
“Drugs” means scheduled drugs as defined under Title 17-A, section 1101. The term “drugs” includes any natural or artificial chemical substance that, when taken into the human body, can impair the ability of the person to safely operate a motor vehicle.
The sеcond sentence of this definition was added by amendment in 1995. See P.L.1995, eh. 145, § 1. Although alcohol is not a scheduled drug within the meaning of 17-A M.R.S.A. § 1101, it arguably could fall within the second sentence’s definition of a “drug.” Thus, there is ambiguity as to whether alcohol is within section 2401(4)’s definition of drugs. Accordingly, we must look to other indicia of legislative intent.
[¶ 15] In 1995 the Legislature amended section 2525 to eliminate a “sunset provision” repealing the statute in June 1995. See P.L. 1995, ch. 145, § 2. The preamble of the amendment’s L.D. states in pertinent part: “Whereas, the drug recognition technician program results in the prosecution of persons who operate motor vehicles while under the influence of drugs other than alcohol; and whereas failure to prosecute this type of offender may result in a greater number of operating-under-the-influence motor vehicle accidents; ... [the sunset provision is hereby repealed].” L.D. 913 (117th Legis.1995) (emphasis added). The L.D.’s Statement of Fact contains similar language: “Drug recognition technicians are law enforcement officers specifically trained to assess whether a person was under the influence of a drug other than alcohol_” Id. (emphasis added). This legislative history provides strong support for Moulton’s position that section 2525’s reference to “drugs” does not encompass alcohol.
[¶ 16] Principles of statutory construction also support this conclusion. Section 2525 uses the conjunctive “and” to describe the mandatory testing provision’s applicability to alcohol: “[A] specific category оf drug, a combination of specific categories of drugs, or
a combination of alcohol and one or more specific categories of drugs
.... ” This language cannot be dismissed as mere surplus-age.
See Struck v. Hackett,
[¶ 17] Notwithstanding the court’s mistaken rationale, however, the HGN testimony was properly admitted. Although the court made no indеpendent finding of the reliability of the HGN test, we held recently that we would take judicial notice of the reliability of such tests in making determinations of probable cause to arrest and for purposes of establishing guilt in operating under the influence cases.
7
State v. Taylor,
[¶ 18] We stated in
Taylor
that “the results of the HGN test should be admissiblе if a proper foundation is laid for their introduction in evidence. A proper foundation shall consist of evidence that the officer or administrator of the HGN test is trained in the procedure and the test was properly administered.”
Taylor,
The entry is:
Judgment affirmed.
Notes
. 29-A M.R.S.A. § 2411 (1996 & Supp.1996) provides in pertinent part:
1. Offense. A person commits OUI, which is a Class D crime unless otherwise provided, if that person operates a motor vehicle:
A. While under the influence of intoxicants; or
B. While having a blood-alcohol level of 0.08% or more.
. To administer an HGN test, an officer uses a pen to check for involuntary jerking of each of the eyes, which results in "clues" of intoxication.
See State v. Taylor,
.In reaching this conclusion, we are not suggesting that an investigatory stop based on safely concerns alone would have been unjustified in this case. We have reсognized that safety reasons can be sufficient to justify an investigatory stop if they are based on specific and articulable facts.
See State v. Pinkham,
. 29-A M.R.S.A. § 2526 (1996) sets forth the eligibility, training, and certification requirements for drug recognition technicians.
. 29-A M.R.S.A. § 2401(13) (1996) defines "under the influence of intoxicants” as "being under the influence of alcohol, a drug other than alcohol, a combination of drugs or a combination of alcohol and drugs."
. We also note section 2525's reference to "specific categories” of drugs. Again, such language cannot be overlooked as mere surplusage.
See Struck,
. We recognize that the court did not have the benefit of our decision in Taylor, which was decided after the court’s ruling in this case.
. Maine Rule of Evidence 201(f) provides: "Judicial notice may be taken at any stage of the proceedings."
