The Bureau of Diplomatic Security (DS) is responsible for providing a safe and secure environment for the conduct of U.S. foreign policy. Every U.S. diplomatic mission in the world operates under a security program designed and maintained by the Bureau of Diplomatic Security. In the United States, DS investigates passport and visa fraud, conducts personnel security investigations, and protects the Secretary of State and high-ranking foreign dignitaries and officials visiting the United States. Within the bureau, there are several divisions that provide administrative services such as automated systems support, financial and personnel management, and other general services. DS has several engineering divisions in Washington, D.C. and an Engineering Service Center in Fort Lauderdale, FL.
The bureau has field and resident offices in various cities throughout the U.S. staffed with special agents and criminal investigators. DS Field Offices are located in the following U.S. cities: Boston, MA; Chicago, IL; Houston, TX; Los Angeles, CA; Miami, FL; New York, NY; San Francisco, CA; and Washington, D.C. DS Resident Offices are located in the following U.S. cities: Portsmouth, NH; St. Albans, VT; Detroit, MI; Minneapolis, MN; St. Louis, MO; Dallas, TX; El Paso, TX; West Los Angeles, CA (satellite office); Honolulu, HI; Phoenix, AZ; San Diego, CA; Tucson, AZ; Atlanta, GA; Charleston, SC (satellite office); San Juan, PR; New Orleans, LA; Hot Springs, AR; Bridgeport, CT (satellite office); Buffalo, NY; Philadelphia, PA; Denver, CO; Seattle, WA; and Greensboro, NC.