NORWICH – The District Attorney’s Office dismissed a felony indictment against a co-conspirator in a drug case Friday and allowed her to plea to a lesser offense when she agreed to cooperate with police investigators.

Leah M. Stone, of Plymouth, pleaded guilty to seventh degree criminal possession of a controlled substance, a misdemeanor, and was sentenced to three years probation. She was originally charged with a B class felony, third degree criminal possession of a controlled substance, which could have carried a maximum sentence of 25 years in state prison.

District Attorney Joseph A. McBride asked Chenango County Supreme Court Judge Kevin M. Dowd to dismiss the felony indictment in favor of a misdemeanor offense, saying Stone “had successfully complied with all her terms.”