Experienced Portsmouth, RI DUI Lawyer

Portsmouth DUI arrests are prosecuted at the Second Division District Court in Newport — and Rhode Island’s 2026 enforcement updates mean prosecutors arrive with stronger procedural tools than they did even two years ago. Whether you were stopped on East Main Road, West Main Road, or Route 114 near the Sakonnet River Bridge, the process that follows is the same: fast, consequential, and unforgiving of delay. For the complete guide to Rhode Island DUI defense — current penalties, defense options, and what to expect at every stage — start there.

Attorneys Stefanie A. Murphy and Matthew T. Marin represent clients throughout Newport County — Portsmouth, Newport, Middletown, and Tiverton — and appear regularly at the Second Division District Court where all Newport County DUI cases are heard.

Rhode Island DUI Laws — What Applies in Portsmouth

DUI in Rhode Island is governed by RIGL § 31-27-2. You can be charged if your blood alcohol concentration (BAC) is 0.08% or higher — or if you are impaired by alcohol, drugs, or any combination, regardless of BAC. Under Rhode Island’s implied consent law (RIGL § 31-27-2.1), driving on state roads means you have already agreed to chemical testing. Refusing a breath or blood test at a Portsmouth stop triggers an automatic license suspension and a separate refusal charge prosecuted at the Rhode Island Traffic Tribunal — a civil proceeding that runs parallel to and independently of your criminal DUI case.

Portsmouth DUI arrests are processed by Portsmouth Police (2300 East Main Road) and prosecuted at the Second Division District Court in Newport. Under Rhode Island’s 2026 updates, the DUI lookback period now extends to 10 years — meaning a conviction from 2016 can elevate a 2026 arrest to a second offense with mandatory minimum jail exposure. Drug-impaired DUI cases, including cannabis, are also being prosecuted more aggressively across Newport County.

Consequences of a Portsmouth DUI Conviction

A first-offense DUI conviction carries fines of $100–$400, up to one year incarceration (mandatory minimums depend on BAC), a 3–12 month license suspension, mandatory alcohol treatment, and — effective January 1, 2026 — an ignition interlock device (IID) requirement for all DUI convictions including first offenses. A BAC of 0.15% or higher increases every minimum substantially. A second offense within the 10-year lookback window brings 10 days to 1 year mandatory jail, fines up to $1,000, and a 1–2 year suspension.

Beyond the courtroom, a conviction affects employment records, professional licensing, and insurance rates for years. A test refusal runs a separate penalty track at the Traffic Tribunal — with its own suspension timeline and fines — that can move faster than the criminal case. For the complete penalty breakdown by BAC tier and offense level, see our Rhode Island DUI penalties and defense strategies guide.

Why Choose Marin & Murphy for Your Portsmouth DUI Defense

Attorney Stefanie A. Murphy is the Editor of A Practical Guide to Trying DUI Cases in Rhode Island (MCLE New England, 2nd Edition 2024) — the definitive trial preparation guide used by prosecutors, defense attorneys, and judges throughout Rhode Island. She has provided formal DUI enforcement instruction to Rhode Island Municipal Police Academy recruits, giving her direct knowledge of how officers are trained to build DUI cases and exactly where those cases can be challenged. She appears regularly at the Second Division District Court and Newport County Superior Court.

Attorney Matthew T. Marin’s work in State v. Zimmerman (2015) forced the Rhode Island Attorney General’s Office to revise its DUI Rights for Motorists form statewide — a suppression victory that affected hundreds of pending defendants. He litigated State v. Corcoran (R.I. 2022), which produced Supreme Court precedent on Miranda requirements during DUI stops, still applicable today.

A DUI prosecution requires the state to establish strict compliance at every step — the legality of the stop, the administration of field sobriety tests, the calibration and operation of breath and blood testing equipment. When law enforcement fails to meet those standards, critical evidence can be suppressed. An experienced Portsmouth DUI lawyer identifies exactly where your case is vulnerable before you make any decisions about how to proceed.