Other supporting documents: Veterans Preference Documentation, if applicable: In order to verify your Veterans Preference entitlement, you must submit a copy of the Member Copy 4 of your DD-214 (Certificate of Release or Discharge from Active Duty); or if you are a current Active Duty member you must submit a certification on appropriate military branch letterhead that indicates:1) your service dates, 2) expected discharge or release date from active duty with a release/discharge date no later than 120 days from the closing date of this announcement, and 3) the character of service (e.g., Honorable); or other official documentation (e.g., documentation of receipt of a campaign badge or expeditionary medal) that shows your military service was performed under honorable conditions. Of the 94 U.S. Attorneys Offices throughout the United States and its territories, the District of Massachusetts is one of the busiest, prosecuting a broad range of cases including national security, white collar crime, public corruption, cybercrime, narcotics and money laundering, organized crime and gang violence, and civil rights violations.