15 people have been busted in a meth investigation that stretches across 3 states.

According to the Daviess County Sheriff’s Department, 14 individuals had warrants served on them for their connection with a multi-state drug ring following an investigation of 18 months. Another person is still wanted in connection to the ring, known as the “Alan Marshall Methamphetamine Distribution Association.” 43-year-old Alan Marshall of Washington was arrested Tuesday on state charges for conspiracy to possess with the intent to distribute 50 grams or more of methamphetamine in addition to federal charges of conspiracy to distribute over 500 grams of methamphetamine. Marshall was one of nine people arrested from Washington in the case.

The investigation was opened by the Daviess County Sheriff’s Department and the Drug Enforcement Administration along with Indiana Alan MarshallState Police also became involved and obtained information that was brought to a grand jury. Daviess Superior Court as well as the US District Court in Evansville issued federal and state warrants for the 15 that were arrested.

Those arrested on federal charges for conspiring to distribute more than 500 grams of methamphetamine included were Marshall, 43-year-old James Coy of Washington, 34-year-old Marcus Newson of Washington, 41-year-old Christopher Kimmons of Coldwater, Miss., and 36-year-old Antoin Alston of Long Beach, Calif. Those arrested for violations of federal statutes on money laundering were 55-year-old Haven Ramsey and 56-year-old Ruby Ramsey, both of Washington, and 68-year-old Barbara Kimmons of Coldwater. Washington residents Jeffrey Fox, 47, Rhonda Lewis, 47, Jennifer Sandoval, 34, and Adam Tolbert, 26, as well as 32-year-old Eunice Lesure, who had no known address were arrested on state felony counts of conspiracy to distribute methamphetamine. 23-year-old Leroy Ellis of Washington was arrested on a state felony warrant for conspiring to distribute more than 3 grams of meth as well as more than 30 grams of marijuana. 43-year-old David Merritt was arrested on a warrant as a federal fugitive from justice. The investigation is still ongoing according to police.

2 pounds of crystal methamphetamine in addition to some marijuana, cash, and firearms were seized from the criminal enterprise during a raid on Tuesday. The Washington Police Department, U.S. Marshals Service, U.S. Postal Service, Internal Revenue Service, U.S. Army National Guard, Vincennes and Evansville police departments, Vanderburgh County Sheriff’s Department and Daviess County Prosecutor’s Office all assisted in that raid.