Lynn Grumbine, 43, of Lexington Park
Lynn Grumbine, 43, of Lexington Park, is facing misdemeanor charges of possessing a controlled substance other than cannabis and possessing drug paraphernalia after deputies arrested her on an outstanding probation warrant near a Lexington Park grocery store on July 25, 2026.
According to the St. Mary’s County Sheriff’s Office account, deputies located Grumbine near the Weis Market on Great Mills Road after learning she might have an active warrant. A deputy reported seeing her leave the store and told her she was under arrest.
Nothing was reportedly found directly on Grumbine during an initial search. She allegedly told the deputy that she had “a stem” in a purse she was carrying. Authorities described the item as a glass smoking device with white powder residue inside and burned residue at the bottom. The substance was identified in the allegations as suspected cocaine.
Grumbine was charged with possessing the glass device with the intent to use it to ingest or inhale a controlled substance and with possessing suspected cocaine residue. Both charges remain pending.
Lynn Grumbine, 43, of Lexington Park
At an initial appearance on July 26, Grumbine was represented remotely by a court-appointed attorney. A commissioner determined that release solely on her promise to return would not adequately ensure her appearance because of a prior failure-to-appear record. She was released after posting a $2,000 unsecured personal bond.
Her release conditions require her to appear in court, avoid criminal activity and abstain from alcohol and from the misuse or unauthorized possession of controlled substances.
The warrant that led to the arrest was connected to Grumbine’s 2025 conviction for possessing counterfeit currency. In that case, a St. Mary’s County deputy responded to a 7-Eleven on North Run Drive in Lexington Park on April 12, 2025, after an employee reported that a customer had used a fraudulent $20 bill.
The employee said the bill was accepted during a purchase but was repeatedly rejected by a scanner used to deposit money into the store safe. The employee then noticed the words “Motion Picture Purposes” printed on it.
When confronted, Grumbine allegedly became upset and argued with the employee. The employee reported that Grumbine said she could “just tear up” the bill before leaving the store. Deputies reviewed surveillance video and later identified Grumbine as the customer, according to the allegations.
Grumbine initially pleaded not guilty but was found guilty on July 1, 2025. She received a 90-day jail sentence, with 60 days suspended, and one year of unsupervised probation. A probation-violation proceeding was opened in May 2026.
She did not appear for a July 23, 2026, probation hearing, prompting a judge to issue a bench warrant. The warrant was served on July 26. She was released on a separate $2,000 unsecured bond, and another probation hearing is scheduled for September 1, 2026.
Grumbine also has an unresolved drug case stemming from a February 4, 2026, traffic crash near Three Notch Road and First Colony Boulevard. Emergency medical personnel allegedly told a deputy that Grumbine had concealed a smoking device on her person.
After the device was found in her clothing, Grumbine allegedly stated, “You found my crack pipe.” Laboratory testing later identified cocaine on the device, authorities reported. She was charged with cocaine possession and possession of drug paraphernalia.
That case was moved from St. Mary’s District Court to Circuit Court after a jury trial request. Both misdemeanor charges remain open. A status hearing is scheduled for August 24, followed by another hearing on October 2 and a jury trial beginning October 5, 2026.
In a separate June 2026 case, Grumbine was charged with theft of less than $100 following two transactions at a Wawa on Three Notch Road in Lexington Park.
An employee told a deputy that Grumbine used a self-checkout register but did not pay for a cinnamon cream cheese pull-apart valued at $2.59. Later that day, she allegedly obtained an extra-large iced coffee but entered it into the register as a less expensive small coffee.
The reported total loss was $4.09. The employee said Grumbine passed the store’s points of sale and left in a gray Jeep. Deputies reported reviewing store video that showed the transactions. The theft charge remains pending.
Earlier in 2026, Grumbine faced four charges in Calvert County after an arrest on January 8 near St. Leonard Road. Those allegations included possession of cocaine and three counts of possessing drug paraphernalia involving a burned glass pipe, burned copper mesh and a burned spoon.
All four Calvert County charges were placed on the inactive docket on March 25, 2026. That action, known as a stet, did not result in a conviction and allowed prosecutors to suspend the case subject to stated conditions.
Grumbine also has a prior second-degree assault conviction arising from a September 7, 2024, incident in Leonardtown. She was originally charged with two counts of second-degree assault, resisting arrest and two counts of damaging property valued at less than $1,000.
The property charges involved a sliding glass door and a medical equipment cart at MedStar St. Mary’s Hospital. The allegations identified two people as assault victims.
Grumbine pleaded guilty to one count of second-degree assault on December 19, 2024. The remaining assault, resisting-arrest and property-damage charges were placed on the inactive docket. Following a later probation violation, her probation was revoked on July 1, 2025, and she was ordered to serve a one-year jail sentence.
