Bottom Line Up Front
Lexington Park sits on a fault line. A DUI stop on Three Notch Road, on Pegg Boulevard near the Wildewood light, or on MD 246 outside San Souci Plaza proceeds as a Maryland case in Leonardtown District Court. The same kind of stop on the other side of the PAX River main gate becomes a federal citation prosecuted before a magistrate judge in Greenbelt. The BAC reading is identical. The procedure, the prosecutor, the sentencing options, and the collateral consequences are not. Where the stop happened often matters more than what the breath test said.
Lexington Park is the population center of St. Mary’s County and the busiest stretch of road in southern Maryland. The Naval Air Station Patuxent River anchors the local economy, drawing thousands of military personnel, civilian contractors, dependents, and support staff into the same handful of restaurants, bars, and apartment complexes off Route 235. Friday and Saturday nights produce a steady flow of traffic between Wildewood, San Souci, the strip along Three Notch Road, and the housing areas to the south. Enforcement follows that traffic.
For drivers stopped in this area, the most consequential question after “what did the breath machine say” is “where exactly did the lights come on behind me?” That single fact determines which court system handles the case, which prosecutor reviews it, and which set of penalties the driver is exposed to. Our complete St. Mary’s County DUI guide lays out the full Maryland framework. This article focuses on the Lexington Park specifics that change the analysis.
The Three Notch Road Stop
Most Lexington Park DUI cases begin somewhere along Route 235 between the FDR Boulevard split and the southern end near Great Mills Road. The Maryland State Police out of Barrack “U” in Leonardtown, the St. Mary’s County Sheriff’s Office, and on rare occasions Maryland Transportation Authority officers all work this corridor. Stops cluster at predictable times: closing time from the bars and restaurants between roughly 11 p.m. and 2 a.m., and during the dinner hours when after-work groups leave the chain restaurants near Wildewood Center.
The legal framework is the same one that applies anywhere in Maryland. Transportation Article § 21-902 creates per se DUI at 0.08 BAC, DUI on impairment grounds without a number, DWI as the lesser standard, and parallel offenses for drugs. Implied consent under Transportation Article § 16-205.1 governs the breath test decision and the license suspension that follows. The MVA sets a ten day window from the date of the stop for requesting an administrative hearing, and that window does not pause for travel, work schedules, or military deployments.
The Lexington Park advantage: Defense counsel familiar with the Route 235 enforcement patterns can often identify whether a stop occurred on a stretch where weaving claims are difficult to support. The road has multiple merges, lane shifts, and narrow shoulders. Movement that an officer reports as “weaving” can sometimes be explained by the road geometry alone.
A state DUI case in Lexington Park travels to the District Court of Maryland for St. Mary’s County at 41605 Courthouse Drive in Leonardtown. The trip up MD 5 from Lexington Park takes about fifteen minutes on a normal weekday morning. From there, the case proceeds through the path described in detail in our St. Mary’s County DUI cornerstone: arraignment, possible pre-trial conference, trial or plea, sentencing, and any subsequent MVA proceedings.
Inside the PAX River Gate
Once a vehicle passes the main gate at Naval Air Station Patuxent River, jurisdiction shifts. The federal government controls the base. Stops conducted by base police or federal authorities within the installation produce federal citations, not Maryland charges. A DUI inside the gate is prosecuted under federal regulations that incorporate Maryland’s substantive impaired driving law by reference, but the procedure is entirely different.
Federal citations from PAX appear in the United States District Court for the District of Maryland, typically before a magistrate judge in the Greenbelt courthouse, roughly 80 miles north of Lexington Park. Drivers must travel to that courthouse for arraignment and any subsequent hearings. The prosecutor is an Assistant United States Attorney or a Special Assistant. The discovery process, the plea options, and the sentencing matrix all follow federal practice.
The substantive consequences also differ. A federal DUI conviction does not produce Maryland MVA points in the same way a state conviction does. The MVA does, however, take notice of out of state and federal convictions when assessing license status, and the Federal Motor Carrier Safety Administration treats federal DUIs as disqualifying events for CDL holders. Security clearances, base access, and military discipline systems all create additional layers of exposure that a state DUI case rarely triggers.
Civilian contractors face a quiet third penalty. Loss of base access often follows a federal DUI on PAX. For a contractor whose job depends on entering the installation daily, that loss is functionally a termination, even if the criminal case ends with a minor sentence. Defense strategy in these cases must account for the employment consequence from day one, not as an afterthought.
Stops Near the Gate, Not Inside It
The gray area is the stop that begins on Three Notch Road or Pegg Boulevard and continues toward the gate, with the actual contact happening on the access road. The boundary line of the federal installation is not always obvious from inside a vehicle. Counsel reviews dashcam footage, GPS metadata from the patrol unit, and the original stop coordinates to determine whether the stop happened on Maryland land or federal land. That single determination can move the case to a different courthouse and a different prosecutor.
Drivers who live in the residential areas just outside the gate (Cedar Cove, Town Creek, the apartment complexes along South Shangri-La) sometimes face a related question: a stop that begins outside the gate, with arrest paperwork completed by base police after the driver was redirected onto the installation. Those mixed jurisdiction cases require careful review of the stop sequence to identify the right defense forum.
License, Clearance, and Career
A Lexington Park DUI rarely ends at the courthouse door. The MVA case proceeds independently. Security clearance reviews open under Department of Defense reporting requirements. Employer notification policies vary among the contractors operating on PAX, and many require self reporting of any arrest within a defined window. Failing to report on time can become a separate problem larger than the DUI itself.
For active duty service members, the unit chain of command typically learns of any off-base civilian arrest within hours. Non judicial punishment, administrative separation actions, and security clearance suspensions can all follow the criminal case. The Uniform Code of Military Justice does not require a criminal conviction to support an Article 15 proceeding; the underlying conduct is enough.
For drivers commuting between Lexington Park and Calvert County across the Thomas Johnson Bridge, the consequences also reach into the next county. Drivers who live in Solomons or Dowell but work at PAX, or vice versa, may benefit from understanding how the Dowell and Solomons bridge corridor is enforced from the Calvert side. The traffic in both directions is heavy, and stops near the bridge can come from either county’s police agencies.
The First 48 Hours
Whether the stop happened in Wildewood or inside the PAX gate, the priorities in the first 48 hours after a Lexington Park DUI charge are the same. Preserve the right to a hearing on the license action. Identify and protect any employer reporting deadlines. Pull copies of any documents the driver received: the temporary license, the citation, the DR-15 form, and any release paperwork. Avoid posting on social media. Avoid contacting the arresting officer or the alleged victim if the case involves a crash.
The decisions made in those first two days set the trajectory of the case. A driver who acts quickly preserves options. A driver who waits often arrives at counsel’s office having already missed the MVA deadline, having already failed an employer self-reporting requirement, or having already given a damaging post-arrest statement. None of those mistakes is fatal, but each one narrows the path forward.
Lexington Park DUI Defense, On Both Sides of the Gate
Haskell & Dyer represents drivers facing state and federal DUI cases out of Lexington Park, including service members, contractors, and dependents stationed at PAX River.
Main Office: 301-627-5844
24/7 Hotline: 240-687-0179
Related Reading
- From Patuxent to Point Lookout: The Complete St. Mary’s County DUI and Traffic Defense Guide
- The First 24 Hours After a Traffic Arrest: A Defense Lawyer’s Checklist
- How the Maryland Ignition Interlock Program Actually Works
References
Federal Motor Carrier Safety Administration. (2024). Commercial driver’s license standards: 49 C.F.R. § 383. Washington, DC: U.S. Department of Transportation.
Maryland Code Annotated, Transportation Article § 16-205.1 (2024). Suspension or disqualification for refusal to take chemical test. Annapolis, MD: General Assembly of Maryland.
Maryland Code Annotated, Transportation Article § 21-902 (2024). Driving while under the influence of alcohol. Annapolis, MD: General Assembly of Maryland.
U.S. District Court for the District of Maryland. (2024). Local rules and magistrate court procedures. Greenbelt, MD: Author.
U.S. Department of Defense. (2023). Personnel security clearance reporting requirements: DoD Directive 5220.6. Arlington, VA: Author.
Legal Disclaimer: This article provides general information about DUI law and is not legal advice. Reading it does not create an attorney client relationship with Haskell & Dyer. The application of any statute or regulation depends on the specific facts of an individual case. For a confidential consultation, call 301-627-5844 or our 24/7 hotline at 240-687-0179.


