Senate amends and passes measure to criminalize measurable amounts of parent drug in bloodstream; debate over testing and enforcement

House Bill 311, a controlled‑substance law amendment carried in the Senate by Senator Bell, passed the Senate on March 2, 2005, after a contentious floor debate and adoption of a friendly amendment clarifying the bill targets the parent drug, not metabolites.

Senator Bell, the floor sponsor, described the measure as a definitional clarification to address legal gaps in prosecuting consumption of controlled substances and to ensure that possession/consumption can be proven when appropriate: “...we are dealing with part of the statute that is definitional.” He explained the bill is framed to require proof beyond a metabolite and to focus on a measurable amount of the parent drug in the bloodstream.

Senator McCoy moved and described a friendly amendment that the body adopted; the amendment explicitly limits the statutory language to the parent drug and not metabolites, addressing concerns raised by the Utah Criminal Defense Lawyers Association. In moving the amendment, McCoy summarized its purpose: “This amendment clarifies that, in this definition, what we're talking about is the parent drug itself and not the metabolites of the [drug].”

Floor opponents and questioners — including Senator Madsen and Senator Butters — expressed practical and constitutional concerns. Senators asked how the statute would operate in practice, particularly whether routine urine tests, employer tests or hospital panels might become criminal evidence and how law enforcement would obtain reliable, constitutionally sufficient blood tests in roadside or crash situations. Senator Butters said he supported the bill’s aim but wanted assurance it would not impede prosecution of impaired driving, noting the practical difficulty of detecting impairment in the field.

Senator McCoy and others clarified that existing DUI statutes remain available to prosecute impaired driving (including impairment involving metabolites and field‑screening circumstances) and that HB 311 addresses a different evidentiary pathway. The floor record shows senators debated the constitutional evidentiary standard and whether employer or medical tests would meet admissibility requirements.

Outcome: After debate and the amendment to exclude metabolites, the Senate passed House Bill 311 by roll call (24 yes, 2 no, 3 absent). The bill was returned to the House as amended.

What this means: The enacted language narrows criminal liability to a demonstrable presence of the parent drug under standards expected to meet constitutional evidentiary requirements; practical enforcement will depend on forensic testing protocols, prosecutorial decisions and any implementing administrative guidance.