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Bill

HB 467

Revise DUI testing to include oral fluids

2025 Regular Session Introduced by Steve Kelly

Montana now permits oral fluid testing alongside breath and blood tests for DUI detection, potentially streamlining roadside enforcement while introducing new evidentiary standards.

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#crimes #alcohol #lawenforcement
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Bill Summary · HB 467

Legislative bill overview

HB 467 authorizes law enforcement in Montana to use oral fluid testing (saliva) as an alternative method for detecting drugs and alcohol in suspected DUI cases, in addition to existing breath and blood tests. The bill updates DUI testing procedures to include this newer screening technology, which can be administered roadside more quickly than traditional methods.

Why is this important

Oral fluid testing could expedite DUI investigations and reduce the need for blood draws, potentially lowering costs and improving officer safety. However, it introduces new scientific standards into Montana's impaired driving enforcement, with real consequences for how DUI arrests are prosecuted and defended in court.

Potential points of contention

  • Scientific reliability concerns: Oral fluid testing is less established than breath or blood tests in courts; defense attorneys may challenge its accuracy and admissibility, particularly regarding drug detection thresholds
  • Standardization and training: Without clear protocols, different officers may conduct tests inconsistently, raising due process questions and creating litigation risks
  • Privacy and consent issues: Oral fluid collection is less invasive than blood draws, but questions remain about when testing can be mandated versus voluntary, and how results correlate to actual impairment levels

Compiled from official sources — confirm details with the bill’s official record.

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