Most of the states make it unlawful for a person to possess a narcotic drug unless authorized under the narcotic drug statutes. Most jurisdictions have adopted the Uniform Narcotic Drug Act with various amendments." Yet in those states in which the UNDA is not in force, the corresponding laws are nearly identical. Generally, the statutes specify that it is unlawful to possess "any narcotic drug." This phrase is considered by most jurisdictions to specify that any amount, even the slightest trace, is sufficient for a conviction, while other states require that a "usable quantity" must be present.
Drugs- Quantity of Possession of a Narcotic Necessary for Conviction,
U. Rich. L. Rev.
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