Four Greenfield residents were taken into custody this week as part of a gang suppression operation. Dario Lopez, Dolores Whitney, Isaias Vasquez and Reyna Chavez were arrested early Wednesday morning on multiple charges including a felony arrest warrant, possession of narcotic paraphernalia and weapons possession. Officers from the U.S. Marshals office and Greenfield police conducted 20-traffic stops, 10 pedestrian checks and about 10-home compliance checks, and issued 1 traffic citation.