Drugged Driving Lawyer in Calvert County
Calvert County Sheriff's Office deputies and Maryland State Police troopers working Route 4 and Route 2 make drugged driving arrests regularly. Unlike alcohol cases, there is no breath test for drugs, no legal limit that automatically constitutes impairment, and the scientific tools the State relies on are far less settled than most people assume.
Maryland law does not have a per se drug impairment limit. Presence of a drug in your system is not the same as being impaired while driving. The State must prove your driving was actually affected by the substance, and that is a harder standard to meet than pointing to a number on a test result.
The Two Drug DUI Charges in Maryland
Under Section 21-902 of the Transportation Article, there are two distinct drug-related impairment charges:
Driving While Impaired by a Controlled Dangerous Substance (Section 21-902(d))
To convict, the State must prove you were driving, that you were impaired, and that the impairing substance was a controlled dangerous substance (CDS) as defined under Title 5, Subtitle 4 of the Maryland Criminal Code. Common examples include:
- Marijuana
- Oxycodone, fentanyl, and other prescription pain medications
- Alprazolam (Xanax) and other benzodiazepines
- Cocaine, heroin, and other illicit drugs
Penalties:
- First offense: Up to 1 year in jail, $1,200 fine, 12 points
- Second offense: Up to 2 years, $2,400 fine, 12 points
- Third offense: Up to 5 years, $500 fine, 8 points
Driving While Too Far Impaired by Drugs and/or Alcohol (Section 21-902(c))
This charge does not require the State to identify what drug the driver was taking. They only need to prove some drug or combination of substances was impairing driving. This makes it easier to charge but often easier to defend, because the State's evidence of what was actually in your system is vaguer.
Penalties:
- First offense: Up to 60 days, $500 fine, 8 points
- Second offense: Up to 1 year, $500 fine, 8 points
- Third offense: Up to 5 years, $500 fine, 8 points
Read the full drugged driving overview here.
How Calvert County Officers Build Drug DUI Cases
Without a breathalyzer for drugs, Calvert County deputies and Maryland State Police troopers rely on two primary tools:
Drug Recognition Experts (DREs)
A Drug Recognition Expert is an officer who completes specialized training to evaluate whether a driver is impaired by drugs and, if so, what category. A DRE evaluation involves a 12-step protocol that may include:
- Modified HGN and additional eye examinations
- Walk and Turn and One Leg Stand tests
- Pulse rate and blood pressure measurements
- Pupil size measurement using a pupilometer
- Body temperature reading
- Darkroom eye examination
DRE evaluations are voluntary. There is no criminal or license penalty for declining to participate. These tests have documented false positive rates and many of the physical indicators a DRE uses have alternative explanations unrelated to drug use, including anxiety, fatigue, prescription medication effects, and medical conditions.
Blood Tests
When a Calvert County officer suspects drug impairment, they will request consent for a blood draw to test for the presence of drugs. Blood tests for drugs are voluntary in Maryland. Refusal may trigger a license suspension through the MVA, but the refusal itself cannot be used against you as proof of impairment.
The key scientific challenge in blood test cases is this: presence does not equal impairment. Many drugs, particularly marijuana, remain detectable in blood for days, weeks, or months after their active effects have completely worn off. A positive marijuana blood test tells you the substance was in the person's system. It does not tell you whether they were experiencing any effects at the time they were driving.
The State has no established legal limit for any drug in Maryland. There is no equivalent to the 0.08 BAC threshold. Every drug DUI case requires the State to prove impairment from the totality of the evidence.
Defending Drugged Driving Cases in Calvert County
No legal limit. Because there is no per se standard for drugs, the State's case depends on the officer's observations, the DRE evaluation, and the blood test result, all of which can be individually challenged.
Challenge the stop. If the Calvert County Sheriff's deputy or State Police trooper lacked legal grounds to pull you over, a motion to suppress can remove all evidence obtained after the stop. Route 4 traffic stops in Calvert County sometimes arise from minor equipment violations or vague observations that do not meet constitutional standards.
DRE methodology. The Drug Recognition Expert protocol has not achieved the same scientific validation as alcohol impairment testing. Cross-examination of a DRE at trial on their training, the false positive rates of specific tests, and the alternative explanations for their observations can significantly undermine the State's expert. The 12-step protocol exists in a much grayer scientific space than officers are trained to acknowledge.
Blood test timing and science. The time between when a drug was ingested and when blood was drawn, the specific substances found, and the half-life characteristics of those substances all affect whether a positive test result can actually support an impairment finding. Marijuana is the most common example, but the same analysis applies to prescription medications and other substances.
Prescription medication defense. If the substance found in your blood was a lawfully prescribed medication taken at the prescribed dose, the defense centers on whether that medication was actually affecting your driving at the time of the stop. Compliance with a prescription is not automatically a defense, but it is evidence that goes directly to the impairment question.
Marijuana DUI in Calvert County
With marijuana legalization in Maryland, the frequency of marijuana-related DUI charges in Calvert County has not decreased. Officers who smell marijuana during a traffic stop often call for a DRE evaluation and request a blood draw.
These cases are often the most defensible drug DUI cases available. The smell of marijuana does not prove current impairment. A DRE's opinion that a driver is under the marijuana's influence is inherently uncertain. A positive blood test for THC says nothing reliable about whether the driver was impaired at the time of the stop. Prosecutors in Calvert County face a genuinely difficult evidentiary burden in these cases.
FrizWoods: Southern Maryland Drug DUI Defense
Luke Woods and Max Frizalone have both handled drugged driving cases in Calvert County across the full spectrum, from marijuana arrests to prescription medication cases to multi-drug blood test results. They know how the Calvert County State's Attorney builds these cases and where the weaknesses are.
Our North Beach office is at 9120 Chesapeake Ave, Suite 201. Contact us for a free consultation. We answer 24/7.
FAQs
Q: Is there a legal drug limit for driving in Calvert County?
A: No. Maryland has no per se drug limit equivalent to the 0.08 BAC threshold for alcohol. The State must prove actual impairment of your driving, not just the presence of a substance in your system. This is a fundamentally different and often harder standard for the State to meet. Read the full drugged driving page.
Q: Can I refuse a drug blood test in Calvert County?
A: Yes. Blood tests for drugs are voluntary in Maryland. Refusal may trigger an MVA license suspension, but the refusal itself cannot be used as evidence against you in court. An attorney can help you evaluate the situation.
Q: Can I be charged with drugged driving for taking my own prescription medication?
A: Yes. Maryland's CDS law covers prescription drugs. If an officer believes a lawfully prescribed medication is impairing your driving, a charge can be filed. The defense focuses on whether the medication was taken as prescribed and whether it was actually affecting your driving at the time.
Q: Does a positive marijuana blood test mean I will be convicted in Calvert County?
A: No. THC can remain detectable in blood for weeks after effects have worn off. A positive test shows presence, not current impairment. Calvert County prosecutors face a real evidentiary challenge in marijuana DUI cases, and these cases are regularly won on this specific scientific argument.