The table below summarizes the evidence concerning various DWI sentencing options that are discussed in detail in the text of this guide:
Suspension/revocation
(≥90 days; 30 days hard) |
Reduces alcohol-related fatalities 6-19% (administrative license revocation) |
One study showed it
does not cause employment problems. |
Impoundment/immobilization |
Reduces recidivism by
40%-70%. |
Immobilization may be more cost-effective. |
Alcohol ignition interlocks |
Effective while on vehicle. |
Breath test failures in first few weeks are best predictor of recidivism. |
License plate impoundment |
Shown to be effective in MN. |
More cost-efficient than impoundment. |
Treatment as appropriate to problem |
Reduces recidivism by 7%-9%. |
Should be paid by the offender when possible. |
Electronic monitoring Home confinement |
Effective alternative to jail. Reduces recidivism by 33%. |
Can be self-sufficient if paid by the offender. |
Fines |
No studies of effectiveness found. |
Sometimes used to pay for programs. |
Suspension/ revocation (≥ 1 year) 30-90
days hard
Remaining days on restricted license/
work permit |
No studies found on the effects of license suspension on repeat offenders. General deterrent effect of
6-19%. |
Studies indicate 50-70% of offenders continue to drive to some extent. |
Impoundment/immobilization |
Reduces recidivism by 40%-70%. |
Immobilization may be more cost-effective. |
Alcohol ignition interlocks |
Reduces recidivism while on vehicle. |
Breath test failures in first few weeks are best predictor of recidivism. |
License plate impoundment |
Shown to reduce recidivism in MN. |
More cost-efficient than impoundment. |
Mandatory assessment of drinking problem and mandatory treatment. |
Reduces recidivism by 7%-9%. |
Should be paid by the offender when possible. |
Electronic monitoring and home confinement. |
Reduces recidivism by 33%. |
Can be self-sufficient if paid by the offender. |
Intensive supervision probation. |
Reduces recidivism by 50%. |
Should be at least partially funded by the offender. |
Special DWI facilities. |
Reduces recidivism by 75%. |
|
Day reporting center. |
Integrates offender back into society. |
More cost-effective than jail. |
Fines, reinstatement fees. |
No studies on effectiveness found. |
Helps pay for costs of other sanctions. |
DWI court (e.g., frequent contact with judge; intensive supervision probation; treatment; random alcohol/drug testing; lifestyle changes; positive reinforcement). |
Some courts reporting reductions in recidivism by 50% or greater. |
Multiple funding sources available. NHTSA and the Bureau of Justice Assistance have a joint evaluation underway. |