DARIEN — A woman from the Bronx was arrested for driving under the influence and possessing marijuana after police pulled her over, thinking she needed assistance.

On Oct. 13 around 12:30 a.m., an officer traveling on Post Road saw a vehicle with its hazard lights flashing on West Norwalk Road. As the officer turned around in a nearby parking lot, the vehicle made a U-turn.

When approaching the vehicle, the officer noticed all the windows were open or partially open despite the cold weather. The officer then detected a strong smell of marijuana. The officer approached the driver , Margrit Mateo, 48, of Fordham Hill Oval, who was on the phone trying to find a house on West Avenue in Norwalk.

A second officer arrived on scene and asked Mateo for her identification and asked her to exit the vehicle. Mateo appeared disoriented, moved slowly and could not find her ID.

The officers asked Mateo to perform a field sobriety test which she failed.

Upon searching the vehicle, officers found a black and white makeup bag that contained rolling papers, empty bags with residue, a small metal grinder, 6.4 grams of a leafy green substance and four vape cartridges with an oil-like residue.

A check showed Mateo’s license was suspended in New York state. She was charged with operating a motor vehicle without a license, possession of drug paraphernalia, possession of less than a half ounce of marijuana and driving under the influence. She was held on a $500 bond and was given a court date of Oct. 24.

ekayata@hearstmediact.com; @erin_kayata