# United States Department of Homeland Security **Entity class:** Organization or institution **Domain:** Austin Research / Institutions **Doc Type:** Research entity **Source basis:** Supplied research cluster with linked references; see the [[wiki/Austin Research Evidence Map|evidence map]] for verification scope. The **United States Department of Homeland Security (DHS)** enters the Austin cluster through the 2009 sensor/social-network terrorism-detection grant and later biometric-identity research recorded in [[wiki/Suzanne Barber|Suzanne Barber]]’s CV. These are specific sponsored connections linking network observation, threat reasoning, and identity. The 2009 award supplies the master addendum’s explicitly requested DHS bridge; the later OBIM project supplies another application in the same investigator’s research history. The node organizes those named relationships rather than treating all surveillance or pandemic work as DHS activity. Each project retains its sponsor, dates, and evidence separately. ## Connected entries [[wiki/Suzanne Barber|Suzanne Barber]] · [[wiki/Sensor and Social Networks Armed to Detect and Defend against Terrorist Attacks|Sensor and Social Networks Armed to Detect and Defend against Terrorist Attacks]] · [[wiki/Office of Biometric Identity Management|Office of Biometric Identity Management]] · [[wiki/Multi-Use Inference and Control|Multi-Use Inference and Control]] ## Sources and corpus context - [[research/The Austin Executable Loop|The Austin Executable Loop — master document]] - [K. Suzanne Barber — UT curriculum vitae, p. 29](https://utdirect.utexas.edu/apps/student/coursedocs/courses/nlogon/download/14637316/#page=29) **Cluster:** [[wiki/Austin Executable Loop|Austin Executable Loop]] · [[wiki/Austin Research Evidence Map|Austin Research Evidence Map]] ## Treasury Lineages Inside DHS The 2003 reorganization moved several enforcement functions from Treasury into DHS. Two lineages are especially important to the ICEPIC and counterterrorism map: - investigative functions of the former [[wiki/United States Customs Service|United States Customs Service]] helped form [[wiki/United States Immigration and Customs Enforcement|ICE]] and [[wiki/Homeland Security Investigations|HSI]]; and - the [[wiki/United States Secret Service|United States Secret Service]] transferred to DHS on March 1, 2003 while retaining its protective and financial-crime missions. The new chart changed administrative command without dissolving cross-department operations. HSI and Secret Service agents report through DHS components, while financial investigations can still depend on Treasury-administered BSA data, FinCEN coordination, sanctions, forfeiture, and private-sector financial relationships. The inherited name [[wiki/Treasury Enforcement Communications System|Treasury Enforcement Communications System]] makes this lineage visible inside the DHS data architecture. ## ICE Analytical and Exchange Stack The historical system chain should be read as separate layers: - **operational records:** [[wiki/Treasury Enforcement Communications System|TECS]] and [[wiki/Enforcement Integrated Database|EID/ENFORCE]]; - **identity and relationship analysis:** [[wiki/ICEPIC|ICEPIC]], followed briefly by [[wiki/DHS Pattern and Information Collaboration Sharing System|DPICS2]]; - **case management:** [[wiki/Investigative Case Management|ICM]]; and - **partner exchange:** [[wiki/DHS Law Enforcement Information Sharing Service|LEIS Service]]. Those layers can interoperate while retaining different purposes, users, retention rules, and oversight records. <!-- BEGIN AUSTIN SURVEILLANCE FIELD --> ## Regional information-sharing interface The surveillance-field essay adds a second, operationally distinct DHS connection: the [[wiki/DHS Law Enforcement Information Sharing Service|LEIS Service]] lists **LEAP (NCTCOG)** among existing MOU partners and describes access to selected DHS person records through [[wiki/ICEPIC|ICEPIC]]. Austin’s regional participation instrument supplies the municipal entry path. This is a named federal interface, alongside the previously documented university grant history. [[wiki/Homeland Security Information Network|HSIN]] supplies a separate watchlist-notification route documented by GAO. The 2009 research award, LEIS queries, and HSIN notifications retain their own program identities and authorities. **Follow:** [[wiki/Law Enforcement Analysis Portal|Law Enforcement Analysis Portal]] · [[wiki/Interlocal Information Sharing|Interlocal Information Sharing]] · [[wiki/BioWatch|BioWatch]] **Source:** [[research/The Austin Surveillance Field|The Austin Surveillance Field]]; [DHS — Law Enforcement Information Sharing Service briefing, slides 4–16; existing MOUs on slide 15](https://info.publicintelligence.net/DHS-LEISS.pdf); [City of Austin — LEAP interlocal agreement, recitals and §§2–7](https://services.austintexas.gov/edims/document.cfm?id=176641); [GAO-26-108650 — Terrorist Watchlist, January 12, 2026; Appendix II, pp. 37–38](https://www.gao.gov/assets/gao-26-108650.pdf). <!-- END AUSTIN SURVEILLANCE FIELD --> ## Relationships <!-- BEGIN HUMANIZED RELATIONSHIPS 2026-09-11 --> This entry's documented connections are expressed in its definition and related-work routes, with provenance retained in the source-linked material. <!-- END HUMANIZED RELATIONSHIPS 2026-09-11 --> - **contains:** [[wiki/United States Immigration and Customs Enforcement|ICE]], [[wiki/Homeland Security Investigations|HSI]], and the [[wiki/United States Secret Service|Secret Service]]. - **inherited Treasury enforcement lineages from:** [[wiki/United States Customs Service|United States Customs Service]] and the pre-2003 Secret Service. - **interfaces with:** [[wiki/United States Department of the Treasury|Department of the Treasury]] on illicit finance, BSA data, sanctions, forfeiture, and financial-system threats.