Daniel F. Conley is the current District Attorney for Suffolk County, Massachusetts, United States who serves Boston, Revere, Chelsea and Winthrop.Appointed to the office in February 2002, Conley was elected in his own right on November 5, 2002, again on November 7, 2006, and most recently on November 2, 2010. As district attorney, Conley oversees the largest and busiest district attorney's office in Massachusetts.