# Texas Data Exchange **Domain:** Austin Research / Surveillance **Doc Type:** Research entity **Source basis:** Supplied essay and the specifically identified records; verification scope is recorded in [[wiki/Austin Surveillance Evidence Ledger|the evidence ledger]]. **Texas Data Exchange (TDEx)** is the Texas criminal-justice information-sharing system identified in DHS’s historical LEIS partner briefing. It is listed in the existing-MOU category beside NCTCOG LEAP, OneDOJ, and specified LInX regions. Texas DPS’s fourth-quarter 2008 Crime Records newsletter says agencies submitting or accessing TDEx data must have an executed MOU on file with DPS. This gives the state layer its own authority instrument: local participation, regional mediation, and state exchange can each involve distinct agreements and responsibilities. In the Austin analysis, TDEx demonstrates that the DHS interface connected several kinds of intermediary, including a state system and a council-of-governments portal. Their common federal partner is documented; their exact bilateral data routes require additional records. The contemporary DPS [[wiki/National Data Exchange|N-DEx]] page is a separate route into national exchange. Historical TDEx naming should not be silently replaced with present program labels or treated as proof that every later interface already existed in 2012. ## Connected entries [[wiki/DHS Law Enforcement Information Sharing Service|DHS Law Enforcement Information Sharing Service]] · [[wiki/Law Enforcement Analysis Portal|Law Enforcement Analysis Portal]] · [[wiki/North Central Texas Council of Governments|North Central Texas Council of Governments]] · [[wiki/National Data Exchange|National Data Exchange]] ## Sources and corpus context - [[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) - [Texas DPS — Crime Records newsletter, fourth quarter 2008, TDEx](https://www.dps.texas.gov/administration/crime_records/crNewsletters/2008/2008-4thQtr.pdf) - [Texas DPS — National Data Exchange](https://www.dps.texas.gov/section/crime-records/national-data-exchange-n-dex) **Cluster:** [[wiki/Austin Surveillance Field|Austin Surveillance Field]] · [[wiki/Austin Executable Loop|Austin Executable Loop]] · [[wiki/Austin Surveillance Evidence Ledger|Austin Surveillance Evidence Ledger]]