BANGOR, Maine, July 25 -- The U.S. Attorney for the District of Maine, Halsey B. Frank, issued the following news release: United States Attorney Halsey B. Frank announced that Sherri Chen, 55, of Hampden, Maine, pled guilty yesterday in U.S. District Court to maintaining a drug-involved premises for use and distribution of heroin and cocaine base, commonly known as "crack." According to court records, between January 2016 and February 2017, Chen, in exchange for drugs, allowed her Hampden res  more