During its 30-year history, the local program, which began as an anti-drug tip line in 1983, has helped close more than 7,170 cases, contributed to more than 4,300 arrests, and assisted in recovering more than $7.56 million in stolen property, cash or drugs. In the last few years, Crime Stoppers has found ways to adapt to the ever-changing technology landscape, according to Ernie Slottag, who’s served as a volunteer member of the organization’s 30-member board since 1998.