Diplomatic Security Service

E25844

federal law enforcement agency security agency

The Diplomatic Security Service is the law enforcement and security arm of the U.S. Department of State responsible for protecting American diplomatic personnel, facilities, and sensitive information worldwide.

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All labels observed (7)

Label	Occurrences
Diplomatic Security Service canonical	22
U.S. Diplomatic Security Service	3
Bureau of Diplomatic Security	2
Diplomatic Security Service leadership	1
Diplomatic Security Service personnel	1
Diplomatic Security Service special agents	1
Office of Security (U.S. Department of State)	1

How this entity was disambiguated

This entity first appeared as the object of triple T163893 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Diplomatic Security Service
Context triple: [U.S. embassies, securityManagedBy, Diplomatic Security Service]

A. United States Secret Service
The United States Secret Service is a federal law enforcement agency best known for protecting the U.S. president and other national leaders, as well as investigating financial and cyber crimes.
B. United States Marshals Service
The United States Marshals Service is the federal law enforcement agency responsible for protecting the federal judiciary, managing and transporting prisoners, executing federal court orders, and handling the witness security program.
C. Treasury Department Office of Security
The Treasury Department Office of Security is a U.S. Treasury component responsible for protecting the department’s personnel, facilities, and sensitive operations, including those related to currency production and handling.
D. U.S. Customs and Border Protection
U.S. Customs and Border Protection is the federal law enforcement agency responsible for securing U.S. borders and regulating the flow of people and goods into and out of the country.
E. United States Department of Homeland Security
The United States Department of Homeland Security is a federal executive department responsible for safeguarding the nation against terrorism, managing border security, and coordinating responses to natural and man-made disasters.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Diplomatic Security Service
Target entity description: The Diplomatic Security Service is the law enforcement and security arm of the U.S. Department of State responsible for protecting American diplomatic personnel, facilities, and sensitive information worldwide.

A. United States Secret Service
The United States Secret Service is a federal law enforcement agency best known for protecting the U.S. president and other national leaders, as well as investigating financial and cyber crimes.
B. United States Marshals Service
The United States Marshals Service is the federal law enforcement agency responsible for protecting the federal judiciary, managing and transporting prisoners, executing federal court orders, and handling the witness security program.
C. Treasury Department Office of Security
The Treasury Department Office of Security is a U.S. Treasury component responsible for protecting the department’s personnel, facilities, and sensitive operations, including those related to currency production and handling.
D. U.S. Customs and Border Protection
U.S. Customs and Border Protection is the federal law enforcement agency responsible for securing U.S. borders and regulating the flow of people and goods into and out of the country.
E. United States Department of Homeland Security
The United States Department of Homeland Security is a federal executive department responsible for safeguarding the nation against terrorism, managing border security, and coordinating responses to natural and man-made disasters.
F. None of above. chosen

Statements (67)

Predicate	Object
instanceOf	federal law enforcement agency ⓘ security agency ⓘ
cooperatesWith	Central Intelligence Agency ⓘ Department of Homeland Security ⓘ linked to: United States Department of Homeland Security Federal Bureau of Investigation ⓘ United States Secret Service ⓘ host nation security services ⓘ
country	United States of America ⓘ
employer	diplomatic couriers ⓘ security engineering officers ⓘ security technical specialists ⓘ special agents of the Diplomatic Security Service ⓘ uniformed security officers ⓘ
fieldOfWork	counterintelligence ⓘ counterterrorism ⓘ criminal investigation ⓘ cybersecurity ⓘ diplomatic security ⓘ law enforcement ⓘ protective security ⓘ
hasPart	Counterintelligence Division ⓘ linked to: Office of Investigations and Counterintelligence Criminal Investigations Division ⓘ Diplomatic Courier Service ⓘ Diplomatic Security Service special agents ⓘ linked to: Diplomatic Security Service Field Offices ⓘ Mobile Security Deployments ⓘ Office of Antiterrorism Assistance ⓘ Office of Cyber Threat and Investigations ⓘ Office of Domestic Operations ⓘ Office of High Threat Programs ⓘ Office of Intelligence and Threat Analysis ⓘ Office of Investigations and Counterintelligence ⓘ Office of Overseas Protective Operations ⓘ linked to: Office of Protective Operations Office of Protective Operations ⓘ Overseas Regional Security Offices ⓘ Protective Intelligence Investigations Division ⓘ Protective Liaison Division ⓘ Resident Offices ⓘ
headquartersLocation	Washington, D.C. ⓘ
inception	1985 ⓘ
jurisdiction	United States Department of State ⓘ
legalAuthority	Omnibus Diplomatic Security and Antiterrorism Act of 1986 ⓘ United States Code Title 22 ⓘ linked to: Title 22 of the United States Code
locatedInTheAdministrativeTerritorialEntity	District of Columbia ⓘ
mission	conduct counterintelligence investigations for the Department of State ⓘ conduct criminal investigations related to passport and visa fraud ⓘ conduct threat assessments for U.S. diplomatic missions ⓘ coordinate worldwide security for U.S. diplomatic facilities ⓘ manage security programs at U.S. embassies and consulates abroad ⓘ protect U.S. diplomatic facilities ⓘ protect U.S. diplomatic personnel ⓘ protect classified information of the U.S. Department of State ⓘ provide protective security for the U.S. Ambassador to the United Nations ⓘ provide protective security for the U.S. Secretary of State ⓘ provide protective security for visiting foreign dignitaries in the United States ⓘ provide security training and assistance to foreign law enforcement and security services ⓘ
notableOperation	investigation of the 1998 U.S. embassy bombings in East Africa ⓘ protective operations for high‑level international summits in the United States ⓘ security for U.S. diplomatic facilities during the Gulf War ⓘ
operatesIn	worldwide ⓘ
parentOrganization	Bureau of Diplomatic Security ⓘ
partOf	United States Department of State ⓘ
precededBy	Office of Security (U.S. Department of State) ⓘ linked to: Diplomatic Security Service
uses	armored vehicles ⓘ firearms ⓘ secure communications systems ⓘ
website	https://www.state.gov/bureaus-offices/under-secretary-for-management/bureau-of-diplomatic-security/ ⓘ

How these facts were elicited

Referenced by (31)

Full triples — surface form annotated when it differs from this entity's canonical label.

U.S. embassies → securityManagedBy → Diplomatic Security Service ⓘ

United States Department of State → oversees → Bureau of Diplomatic Security ⓘ

subject linked to: USDoS

linked to: Diplomatic Security Service

U.S. Marine Security Guards → controlledBy → Bureau of Diplomatic Security ⓘ

linked to: Diplomatic Security Service

Diplomatic Security Service → precededBy → Office of Security (U.S. Department of State) ⓘ

linked to: Diplomatic Security Service

Diplomatic Security Service → hasPart → Diplomatic Security Service special agents ⓘ

linked to: Diplomatic Security Service

Marine Security Guard → worksWith → Diplomatic Security Service ⓘ

subject linked to: MSG

Omnibus Diplomatic Security and Antiterrorism Act of 1986 → implementedBy → Diplomatic Security Service ⓘ

Mobile Security Deployments → partOf → Diplomatic Security Service ⓘ

Mobile Security Deployments → operatedBy → Diplomatic Security Service ⓘ

Mobile Security Deployments → employer → Diplomatic Security Service ⓘ

Mobile Security Deployments → reportsTo → Diplomatic Security Service leadership ⓘ

linked to: Diplomatic Security Service

Office of Protective Operations → partOf → Diplomatic Security Service ⓘ

Office of Domestic Operations → partOf → Diplomatic Security Service ⓘ

Office of Domestic Operations → subOrganizationOf → Diplomatic Security Service ⓘ

Office of Domestic Operations → isDivisionOf → Diplomatic Security Service ⓘ

Office of High Threat Programs → partOf → Diplomatic Security Service ⓘ

Office of High Threat Programs → operatedBy → Diplomatic Security Service ⓘ

Office of High Threat Programs → usesResource → Diplomatic Security Service personnel ⓘ

linked to: Diplomatic Security Service

Office of High Threat Programs → parentOrganization → Diplomatic Security Service ⓘ

Criminal Investigations Division → partOf → Diplomatic Security Service ⓘ

Criminal Investigations Division → parentAgency → Diplomatic Security Service ⓘ

Protective Intelligence Investigations Division → partOf → U.S. Diplomatic Security Service ⓘ

linked to: Diplomatic Security Service

Protective Intelligence Investigations Division → parentAgency → U.S. Diplomatic Security Service ⓘ

linked to: Diplomatic Security Service

Protective Liaison Division → partOf → Diplomatic Security Service ⓘ

Protective Liaison Division → parentOrganization → Diplomatic Security Service ⓘ

Bureau of Diplomatic Security → hasDivision → Diplomatic Security Service ⓘ

Bureau of Diplomatic Security → hasLawEnforcementArm → Diplomatic Security Service ⓘ

Office of Cyber Threat and Investigations → partOf → Diplomatic Security Service ⓘ

Office of Cyber Threat and Investigations → subordinateTo → Diplomatic Security Service ⓘ

U.S. Embassy in Beijing → securityProvidedBy → U.S. Diplomatic Security Service ⓘ

linked to: Diplomatic Security Service

Luke Hobbs → affiliation → Diplomatic Security Service ⓘ

All labels observed (7)

How this entity was disambiguated Show

Statements (67)

How these facts were elicited Show

Referenced by (31)

How this entity was disambiguated

How these facts were elicited