What Happens After an OUI Arrest in Massachusetts

BYLINE: By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense

An OUI arrest in Massachusetts initiates a sequence of events that moves quickly and has consequences that extend well beyond the criminal case. Two entirely separate proceedings begin simultaneously, one in the criminal court and one at the Registry of Motor Vehicles, and both must be managed from the moment of arrest. This post covers what happens at each stage and what the defense can do.

At the Police Station: The Breathalyzer Decision

The first consequential decision after an OUI arrest is whether to take the breathalyzer at the station. Under Massachusetts’s implied consent law, M.G.L. c. 90, § 24(1)(f)(1), declining the breathalyzer triggers an automatic RMV license suspension, 180 days for a first offense, three years for a second, five years for a third. Taking the breathalyzer and registering .08 or above triggers a 30-day RMV suspension for a first offense.

Refusing the breathalyzer denies the prosecution its primary scientific evidence of BAC. Without a breathalyzer result, the Commonwealth must prove OUI through the officer’s driving observations, the field sobriety test results, and general observations of impairment. That is a harder evidentiary case to make. The tradeoff between the longer RMV suspension and the weaker prosecution case is a decision that depends on the specific facts and should be evaluated with counsel immediately after arrest. See: Should I Take the Breathalyzer in Massachusetts?.

The roadside portable breath test (PBT) administered before the station-house breathalyzer is strictly inadmissible at trial in Massachusetts. The number it produces cannot be shown to a jury. It can only be used to establish probable cause for the arrest.

The Two Simultaneous Proceedings

The RMV administrative proceeding. The license suspension triggered at the police station is an administrative action by the RMV, independent of any court proceeding. It takes effect immediately. Winning the criminal case does not automatically restore the RMV suspension, a separate court order or RMV appeal is required. The deadline to appeal a breathalyzer refusal suspension at the RMV is 15 days from the date of arrest. Missing that deadline forfeits the right to appeal. See: Massachusetts OUI License Suspensions.

The criminal proceeding. The criminal case proceeds in the District Court or Boston Municipal Court with territorial jurisdiction over the location of the arrest. The criminal case determines guilt or innocence and imposes criminal penalties, fines, probation, incarceration, and a court-ordered license suspension. A not-guilty verdict or dismissal terminates the criminal case and may allow the court to order the RMV to restore the administrative suspension.

Arraignment

At arraignment, which typically occurs within 24 hours of arrest or on the next business day, the defendant is formally charged and enters a plea of not guilty. A CORI entry is created at arraignment regardless of the eventual outcome. The judge sets bail conditions and may impose additional conditions of release. For first-offense OUI, bail is typically personal recognizance with a condition prohibiting the use of alcohol or controlled substances and sometimes requiring random testing.

For licensed professionals, arraignment triggers mandatory self-reporting obligations to most Massachusetts licensing boards before the case is resolved. For non-citizens, the arraignment CORI entry can affect pending immigration applications and visa renewals. Defense counsel should assess these downstream consequences before arraignment when possible. See: Immigration Consequences of Massachusetts Criminal Charges.

Pretrial: Motions and Discovery

After arraignment, defense counsel files a discovery request for all materials the prosecution intends to use, the officer’s written report, dash camera and body camera footage, the breathalyzer maintenance and calibration records for the specific Draeger Alcotest 9510 used in the arrest, the 15-minute observation log, and any other evidence. The breathalyzer records are particularly important. Following Commonwealth v. Ananias, which resulted in the exclusion of over 27,000 breath test results statewide, these records must be audited in every case. See: Why a Failed Breathalyzer Does Not Equal an OUI Conviction.

When the evidence supports it, defense counsel files a Motion to Suppress challenging the constitutionality of the traffic stop, the breathalyzer result, or both. A successful suppression motion can eliminate the prosecution’s primary evidence and result in dismissal before trial. See: Illegal Searches and Seizures in Massachusetts.

How OUI Cases Resolve

Dismissal after a successful Motion to Suppress. When the traffic stop was unconstitutional or the breathalyzer result is suppressed, the Commonwealth frequently cannot proceed without that evidence and the case is dismissed.

The 24D alternative disposition. Most first-time offenders are eligible for the alternative disposition under M.G.L. c. 90, § 24D. The 24D involves a probationary period, a 45-to-90-day court-ordered license suspension, and completion of an alcohol education program, in lieu of a committed sentence. It is available once in a lifetime. The 24D is not a conviction under Massachusetts law but carries significant collateral consequences and counts as a prior offense for any future OUI. It should not be accepted without a full collateral consequences assessment for the specific defendant.

A CWOF. A Continuance Without a Finding requires an admission to sufficient facts and is treated as a conviction for federal immigration purposes under 8 U.S.C. § 1101(a)(48)(A), for CDL purposes under federal regulations, and by most Massachusetts professional licensing boards. For many defendants, a CWOF’s practical consequences are identical to a conviction. See: CWOF, Pretrial Probation, and Diversion in Massachusetts FAQs.

Not guilty at trial. When a motion to suppress is denied and a CWOF is not an appropriate resolution, the case goes to trial. Attorney Serpa maintains a perfect record of not-guilty verdicts in OUI jury trials. See: Fighting an OUI in Massachusetts: How Cases Are Won at Trial and Massachusetts Criminal Defense Trial Results.

OUI Consequences for Specific Populations

Licensed professionals. For physicians, nurses, attorneys, engineers, financial advisors, and other licensed professionals, an OUI conviction or CWOF is a reportable event to most Massachusetts licensing boards and to FINRA for registered securities professionals. Healthcare professionals with DEA prescribing authority face additional federal consequences. The defense strategy for licensed professionals prioritizes a not-guilty verdict or pre-trial dismissal over a CWOF, because the CWOF’s licensing consequences are often identical to those of a conviction.

College and university students. For university students in the Boston area, an OUI conviction or CWOF triggers a university disciplinary proceeding that runs alongside the criminal case. Under the Junior Operator Law (M.G.L. c. 90, § 24P), drivers under 21 face enhanced penalties and a zero-tolerance BAC standard of .02. The defense of student OUI cases focuses on suppression of breathalyzer and field sobriety evidence and, where a clerk-magistrate hearing is available, pre-arraignment resolution that prevents any CORI entry.

CDL holders. CDL holders face a federal BAC threshold of .04 under 49 C.F.R. § 382.201 and mandatory CDL disqualification of one year for a first OUI conviction, regardless of whether the vehicle driven was a commercial vehicle. A CWOF is treated as a conviction for CDL purposes under federal regulations. A second OUI results in lifetime CDL disqualification. The defense of a CDL holder’s OUI case requires particular attention to every potential motion and trial argument because the stakes extend to career.

Non-citizens. A first-offense OUI conviction does not categorically qualify as a crime of moral turpitude or an aggravated felony under federal immigration law, but an OUI involving drug impairment can constitute a controlled substance offense with permanent immigration consequences. A CWOF is treated as a conviction for federal immigration purposes. Any proposed OUI disposition for a non-citizen must be reviewed by an immigration attorney before acceptance. See: Immigration Consequences of Massachusetts Criminal Charges.

Key Takeaways

• An OUI arrest triggers two simultaneous proceedings: a criminal case in court and an administrative license suspension at the RMV. Both must be managed from day one.
• The breathalyzer decision at the station is consequential. Refusing eliminates the prosecution’s primary scientific evidence but triggers a longer RMV suspension. See: Should I Take the Breathalyzer in Massachusetts?.
• The roadside portable breath test (PBT) result is inadmissible at trial in Massachusetts.
• The RMV breathalyzer refusal suspension appeal deadline is 15 days from the date of arrest. Missing it forfeits the right to appeal.
• A 24D disposition is not a conviction under Massachusetts law but counts as a prior OUI offense for any future charge and carries collateral consequences for licensed professionals, non-citizens, and CDL holders.
• A CWOF is treated as a conviction for federal immigration purposes, for CDL purposes, and by most professional licensing boards.
• For licensed professionals, students, and non-citizens, the only fully safe outcome is a not-guilty verdict or pre-trial dismissal. See: Fighting an OUI in Massachusetts: How Cases Are Won at Trial.

Serpa Law Office represents defendants in OUI cases across the Massachusetts District Courts and Boston Municipal Court. Attorney Joseph Serpa is a Georgetown Law graduate with thirty years of Massachusetts criminal defense experience and a perfect record of not-guilty verdicts in OUI jury trials. Contact Serpa Law Office at 617.936.0201 for a free consultation. Boston office: 20 Park Plaza #400A. Quincy office: 500 Victory Rd., Suite 400A. Available 24 hours a day.

Related Resources

• OUI Defense in Massachusetts, Main Practice Area Page
• Massachusetts OUI FAQs
• Massachusetts OUI License Suspensions
• Should I Take the Breathalyzer in Massachusetts?
• Why a Failed Breathalyzer Does Not Equal an OUI Conviction
• Fighting an OUI in Massachusetts: How Cases Are Won at Trial
• What to Do in the First 24 Hours After an Arrest in Massachusetts
• Arraignment in the Massachusetts Trial Court
• Illegal Searches and Seizures in Massachusetts
• CWOF, Pretrial Probation, and Diversion in Massachusetts FAQs
• Criminal Defense for Licensed Professionals in Massachusetts
• Immigration Consequences of Massachusetts Criminal Charges
• College and University Student Criminal Defense
• Massachusetts Criminal Defense Trial Results