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First Offenders in NM

Learn about the significant findings regarding the effectiveness of ignition interlocks on first-time DWI offenders in New Mexico, based on Roth's comprehensive studies and analysis. Understand the importance of addressing first offenders to reduce recidivism rates and enhance road safety.

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First Offenders in NM

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  1. First Offenders in NM Dick Roth, Bob Voas, Paul Marques 2006 Ignition Interlock Symposium PIRE funded by NHTSA and RWJ Roth on First Offenders

  2. The Percentage of First Offenders Depends on Look-back Time 75% were “First in 5 years” 59% were First in 20 years Roth on First Offenders

  3. The Majority of DWIs Are First Offenders • To Reduce Recidivism, You cannot ignore First Offenders • To Reduce First Offenders, General Deterrence & Prevention Roth on First Offenders

  4. NM First DWI Conviction Study • Time Period: First Convictions between January 2003 and December 2005. • Treatment Group: 1461 First Offenders who installed interlocks within 90 days of conviction. • Comparison Group: 17,562 First Offenders who did not install interlocks. • Cox Multivariate Proportional Hazards Regression (Gender, Age, BAC,Group) Roth on First Offenders

  5. Most First Offender Interlocks were installed for only 3 months Installation duration for the 943 interlocks that were removed before the end of the study. Roth on First Offenders

  6. Interlocked First Offenders Have 62% Less Recidivism. Roth on First Offenders

  7. After Removal Those Who Were Interlocked Still Have a 19% Lower Recidivism Rate…but N is not large enough for it to be statistically significant. Hazard Ratio= 0.81, p=0.16, in a multivariate regression. A hint that bad actors DWI right after removal I hope this is not just a statistical fluctuation. Time will tell. Roth on First Offenders

  8. For 3 years following interlock installation, Those first offenders who installed “mandated” interlocks had lower recidivism. H.R. = 0.61 P < 0.001 Roth on First Offenders

  9. Interlocks are Effective with Court Mandated Offenders Comparison GroupsInterlocked Groups Roth on First Offenders

  10. Interlocks are Effective with Volunteers ie. Not court-mandated Comparison GroupsInterlocked Groups Roth on First Offenders

  11. Before Interlocks After Interlocks Roth on First Offenders

  12. Roth on First Offenders

  13. NM Judicial Law: 1yr for 1st;2 for 2nd;3 for 3rd; 5 for 4th+ Administrative: Drive legally with interlock while Revoked Roth on First Offenders

  14. My Estimate Last year At Annecy Estimate 5688 So Far Roth on First Offenders

  15. Highest in World Interlock Installation Rate is increasing. The Number of Currently-Installed Interlocks is Increasing. Roth on First Offenders

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