A jury found Sasha K. Rhode (Rhode) guilty of possession of heroin, under § 37-2732(c)(1) of the Idaho Code (I.C.), and the district court entered a judgment of conviction based upon that finding. Rhode argues that the district court erroneously instructed the jury that the State need only prove a “detectable” amount of heroin rather than a “usable” amount. This Court affirms the judgment of conviction entered in the district court.
I.
BACKGROUND AND PRIOR PROCEEDINGS
Following Rhode’s arrest for an unrelated incident, police seized a pouch from her car and found a metal spoon and a syringe in the pouch. The spoon had a few milligrams of residue on it which revealed the presence of heroin when tested by the Department of Law Enforcement. Rhode was charged with possession of a controlled substance under I.C. § 37-2732(c)(l). At the close of the State’s case-in-chief, Rhode moved for a judgment of acquittal on the basis that the State failed to offer any evidence that she possessed a usable amount of heroin and not a mere useless trace or residue. Rhode also requested a jury instruction containing language that required the State to prove that there was a usable amount. The district court denied both Rhode’s requested jury instruction and motion for judgment of acquittal. The jury returned a verdict of guilty and the district court entered a judgment of *461 conviction based on the verdict. Rhode appealed the judgment of conviction.
II.
THE DISTRICT COURT DID NOT ERR IN DENYING DEFENDANT’S MOTION FOR JUDGMENT OF ACQUITTAL AND IN REFUSING TO INSTRUCT THE JURY THAT THE STATE MUST PROVE DEFENDANT POSSESSED A “USABLE” AMOUNT OF A CONTROLLED SUBSTANCE.
A. Standard of Review
The question of whether the jury was properly instructed is a question of law over which this Court exercises free review.
State v. Row,
B. The Usable-Quantity Rule
Rhode asks this Court to apply the usable-quantity rule, which prohibits prosecutions for possession of a controlled substance where the amount involved is not usable. A non-usable amount is an amount which “simply cannot be used, such as ... blackened residue or a useless trace.”
People v. Rubacalba,
Several states follow the usable-quantity rale, most notably California, Arizona and Arkansas.
See State v. Murphy,
There are two rationales for the usable-quantity rale, one evidentiary and one statutory. Under the evidentiary rationale, a usable quantity must be proved to satisfy the scienter element of the crime of possession. The statutory rationale is premised on the position that criminal laws regulating drags are designed to curb the societal ill of drug abuse, and the possession of amounts not susceptible to such abuse should not fall within the scope of such laws. See
State v. Forrester,
The evidentiary concern is met by the fact that the State has the burden of proving knowledge beyond a reasonable doubt. If a defendant possesses only trace quantities of a controlled substance, it is more difficult for the State to prove knowledge beyond a reasonable doubt. In this case the State did not rely on trace quantities to prove knowledge; Rhode admitted knowledge of the nature of the substance.
The statutory, policy-based rationale behind the usable-quantity rale is similarly unpersuasive. While it is true that individuals possessing usable quantities are likely to either sell or consume the controlled substances, perpetuating the cycle of drag abuse, it would be wrong to conclude that individuals possessing non-usable, trace quantities stand outside of this cycle of drag abuse. Those possessing trace quantities may have already consumed and/or sold the controlled substances. Neither the evidentiary nor the statutory rationale for implementing the usable-quantity rale recommends the adoption of the usable-quantity rule by this Court.
*462 C. A Statutory Construction Analysis Indicates that Proof of a Usable Amount is Not Required.
Rhode argues that statutory construction leads to the conclusion that a usable quantity is necessary for conviction. Rhode compares Idaho Code provisions criminalizing the possession of “any quantity” of various controlled substances with the code section applicable to her case, in which the “any quantity” requirement is absent, I.C. § 37-2705(c)(ll). The code section which criminalizes the possession of heroin makes no reference to a specific quantity required to make possession unlawful. 1 Rhode argues that had the legislature desired to criminalize the possession of non-usable amounts of heroin, it could have included the phrase “any quantity,” as it did in the classification of hallucenogenic substances in I.C. § 37-2705(d). Neither the plain language of the statute nor analysis of legislative intent leads to the conclusion Rhode seeks.
Where the language of a statute is plain and unambiguous, this Court must give effect to the statute as written, without engaging in statutory construction.
State v. McCoy,
Section 37-2705 lists the schedule I controlled substances. Section 37-2732(c)(l), under which Rhode was charged, states the following:
(c) It is unlawful for any person to possess a controlled substance unless the substance was obtained directly from, or pursuant to, a valid prescription or order of a practitioner while acting in the course of his professional practice, or except as otherwise authorized by this chapter.
(1) Any person who violates this subsection and has in his possession a controlled substance classified in schedule I which is a narcotic drug or a controlled substance classified in schedule II, is guilty of a felony and upon conviction may be imprisoned for not more than seven (7) years, or fined not more than fifteen thousand dollars ($15,000), or both.
There is no specification of the amount that must be possessed to violate § 37-2732(c)(l). Where no minimum is set forth in the statutory language, it is consistent with a plain-language interpretation to hold that even a trace amount satisfies the requirements of this statute. The language of the statute is plain and unambiguous, and a refusal to adopt the usable-quantity rule does not lead to a result which is “palpably absurd.”
Although it is not necessary to examine legislative intent where the statutory language is unambiguous, an examination of legislative intent in this ease leads to the same conclusion. While it might be argued that the omission of the phrase “any quantity” in the statutory language of § 37-2705(c) indicates that trace amounts of heroin should not be classified as a controlled substance, there would be little sense in legislation which has exempted trace amounts of heroin but not marihuana. See I.C. § 37-2705(d)(14). Her *463 oin is classified as more dangerous than marihuana.
Legislative intent in this context has been addressed by both this Court and the Court of Appeals. This Court first rejected a usable-quantity rule in a case involving the possession of phencyclidine hydrochloride (PCP).
State v. Collinsworth,
In light of the limited availability of these substances, an individual’s possession of such substances is almost illegal per se. Thus, although the legislature did not proscribe the possession of “any quantity” of cocaine as it did for methamphetamine, the legislature’s classification of cocaine as a Schedule II controlled substance and its limited availability demonstrate that the legislature intended the possession of even trace or residual quantities of cocaine to fall within the scope of I.C. § 37-2732(c).
Id,
at 151,
III.
CONCLUSION
The judgment of conviction entered in the district court is affirmed.
Notes
. Section 37-2705(c) of the Idaho Code reads:
Any of the following opium derivatives, their salts, isomers and salts of isomers, unless specifically excepted, whenever the existence of these salts, isomers and salts of isomers is possible within the specific chemical designation____
Compare I.C. § 37-2705(d), which reads:
Any material, compound, mixture or preparation which contains any quantity of the following hallucinogenic substances, their salts, isomers....
(Emphasis added).
