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SB 565

Motor Vehicles - Accidents - Required Testing for Impaired Driving (Mateo's Law)

2025 Regular Session Introduced by Mary Beth Carozza and 5 co-sponsors

Maryland bill mandates impaired driving tests in all motor vehicle accidents to identify and prosecute drunk drivers, potentially improving road safety while raising civil liberties concerns.

Hearing 2/07 at 10:00 a.m.
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WeVote Research Nonpartisan
Bill Summary · SB 565

Legislative bill overview

SB 565, known as "Mateo's Law," requires mandatory testing for impaired driving in all motor vehicle accidents in Maryland. The bill would establish a standardized protocol for law enforcement to conduct sobriety tests whenever an accident occurs, regardless of initial suspicion of impairment.

Why is this important

Traffic accidents caused by impaired driving kill thousands annually and injure many more. Mandatory testing could identify impaired drivers who might otherwise escape detection, potentially preventing future fatal crashes and holding accountable those responsible for accidents they cause while under the influence.

Potential points of contention

  • Civil liberties concerns: Requiring testing without individualized suspicion of impairment raises Fourth Amendment questions about reasonable search and seizure, and may face legal challenges
  • Resource allocation: Universal testing in all accidents could strain law enforcement resources, delay accident scene clearance, and increase costs for departments already facing budget constraints
  • False positives and accuracy: Standardized field sobriety tests have documented reliability issues and may generate false positives, potentially leading to wrongful charges or license suspensions

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

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