An 18-year-old from Mystic faces multiple narcotics charges, including possession, selling and operating a drug factory, Groton police said.
Nathaniel J. Humphrey led officers in a pursuit in Stonington before he was eventually stopped.
Humphrey was arrested for the pursuit and two counts for selling narcotics, police said.
A warrant was issued for Humphrey's home where police seized 1.5 ounces of cocaine, digital scales, packaging materials, cutting agents, a money counting machine, a .38 caliber Taurus revolver and an Acura sedan.
In addition to the two counts of selling narcotics, the teen is accused of reckless endangerment, engaging an officer in a pursuit, possession of narcotics, intent to sell, possession of drug paraphernalia and operating a drug factory.
The charges for the firearm are pending.
Humphrey's bond was set at $150,000.