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411 Elm Street • Dallas, Texas 75202 • Phone: 214-653-7949 • Fax: 214-653-6586

Shay Cathey, Senior Policy Adviser


Shay Wyrick Cathey is in her sixth year with Dallas County having worked in the Road & Bridge offices, the Criminal Justice Department, and now with the County Judge.

Most recently, Shay was the Criminal Justice Advisory Board Coordinator for the county working with law enforcement, prosecutors and other justice system leaders to ensure that the Dallas County justice system operates efficiently.

In her new capacity, Shay will advise Judge Jenkins on county policy and monitor the Truancy Courts, which report directly to the County Judge. She will also be the point of contact in his office for all criminal justice and law enforcement issues and serve as his liaison to Parkland Hospital.

As the county judge’s representative, Shay is responsible for working with the following departments, boards, and areas of the county:

County & Local Boards

  • Jail Population
  • MetroCare Board
  • NTX Behavioral Health Auth Board
  • Juvenile Board
  • Parkland Hospital Board of Managers
  • Bail Bond Board
  • PEBC
  • Criminal Justice Advisory Board
  • Financial Review
  • Employee Benefits


  • County Clerk
  • District Clerk
  • District Attorney
  • Health & Human Services
  • Human Resources
  • Juvenile
  • Purchasing
  • Truancy Courts
  • CSCD
  • Constables
  • Sheriff’s Dept.
  • Veterans Dept.


  • R&B 3
  • R&B 4

Lauren Mish, Chief of Staff


Lauren Mish comes to Dallas County after serving in the Texas House of Representatives as Chief of Staff for Rep. Allen Vaught. During her career in Austin, she worked on environmental issues, health and human services bills, and transportation.

Lauren’s legislative experience will be an asset to Judge Jenkins as she monitors bill filings and movement during this legislative session. She will also be the point of contact for all transportation matters, including working with NTTA, RTC and the NCTCOG.

Additionally, Lauren will work with the Director of Dallas County Homeland Security, who also reports to Judge Jenkins, to ensure Dallas County is prepared for any disaster.

As the county judge’s representative, Lauren is responsible for working with the following departments, boards, and areas of the county:

County & Local Boards

  • Historical Foundation
  • Citizens Election Advisory Cmte.
  • Clean Air Emissions Advisory
  • Old Red Foundation
  • Ryan White Planning Council
  • Welfare Advisory Board
  • Public Power Pool Board
  • Emergency Preparedness (EPPC)
  • North Texas Tollway Authority
  • Dallas Regional Mobility Coalition
  • Regional Transportation Council
  • NCTCOG Executive Board
  • Workforce Solutions
  • Elections Commission


  • Auditor
  • Budget
  • Elections
  • Homeland Security
  • Judiciary/Jury Services
  • Forensic Sciences
  • Justices of the Peace
  • Planning & Development
  • Public Works
  • Tax Assessor/Collector
  • Fire Marshal
  • Treasurer


  • R&B 1
  • R&B 2


  • FEMA
  • TxDOT
  • DART
  • Inland Port

Ruby Blum, Policy Advisor


Ruby Blum comes to Dallas County after working at the Wyoming Department of Health in the Directors Unit for Policy, Research, and Evaluation. During her time in Wyoming she focused on health policy related to Medicaid and Medicare.

Additionally, Ruby has a background in coaching speech in debate and will bring strong research and policy skills.

In her position with Judge Jenkins, Ruby advises on health policy including Affordable Care Act implementation efforts, the 1115 waiver, and healthcare related legislation. Working closely with Parkland Hospital as well as other area hospitals and healthcare providers on policy issues that impact Dallas County. She also works closely with local, state, federal and community organizations related to public health issues.

Ruby successfully led a three year AmeriCorps VISTA project sponsored by the Office of the County Judge in partnership with Parkland's Southeast Dallas Health Center. Healthy Dallas County worked to improve access to services and increase community awareness of health coverage options.

Ruby coordinates Enroll North Texas, a strong community partnership of organizations committed to improving health insurance coverage and access to care.

She currently serves as a member of the American Heart Association’s Smoke-Free State Leadership Council.

Having previously completed a Bachelor of Arts in Political Science from Seattle University, she is currently pursuing a Masters of Science in Health Care Administration and Leadership from the University of Texas – Dallas.

Ruby is responsible for working with the following departments, boards, and areas of the county:

County and Local Boards

  • SWA NTX Health Alliance
  • SeniorCorps Advisory Board - Senior Source
  • Enroll North Texas


  • Department of Health and Human Services
  • Texas Health and Human Services Commission
  • Parkland Hospital
  • DFW Hospital Council
  • Dallas County Medical Society
  • Center for Medicare and Medicaid Services
  • Texas Hospital Association
  • Corporation for National Community Service