Sheriff Marian Brown was sworn in as Sheriff of Dallas County on January 1, 2019. Sheriff Brown is the first African-American Sheriff in Dallas County and one of only five African-American female sheriffs in the United States. Sheriff Brown began her career in law enforcement in 1988 with the Duncanville Police Department. She was a pioneer, in that she was the first African-American female hired by the Duncanville Police Department.

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Executive Chief Deputy Patrick Bonner - Patrick Bonner is a lifelong resident of Dallas, Texas graduating from Skyline High School. Patrick Bonner began his law enforcement career 29 years ago with the Dallas County Sheriff’s Office. Starting as a detention service officer, he graduated from the Dallas County Sheriff’s Office Academy as a deputy sheriff BPOC 98.

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Chief Deputy Office of General Services Gary McDaniel began his law enforcement career at the Duncanville Police Department in 1983 as a Patrol Officer. During his service at Duncanville he rose through the ranks to Lieutenant and commanded several divisions. Those divisions included Criminal Investigation,...


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Assist Chief of the Enforcement Bureau, James Spencer. In 1987, he joined the Texas Department of Public Safety- Highway Patrol and graduated from the DPS Academy as a State Trooper. After 7 years as a patrolman, he entered the promotional process. He continued in the promotional process all the way up through the ranks of Highway Patrol Major (commander), commanding over 600 troopers.

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Assistant Chief Deputy Raymond Williams oversees the Investigations Bureau, including the Criminal Investigations, Special Investigations, K-9,  the Sheriff’s Department Training Academy, and the Personnel Section. He began his career in law enforcement on August 01, 1988, as a Detention Service Officer with the Dallas County Sheriff’s Department.

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Chief Deputy Office Of Special Services Fredrick Robinson oversees the Office of Detentions. He began his career in 1993 as a detention officer after honorably being discharged from the United States Army.

Chief Robinson was promoted to deputy sheriff in 1996. He worked in the jail and as a patrolman, as well as, a school resource officer in his tenure as a deputy.

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Assistant Chief Deputy Paul Lehmann is over the Support Services Bureau. He started his career with the Texas Department of Criminal Justice before joining the Dallas Sheriff’s Department in 1992. He has worked assignments at the West Tower, North Tower, Intake, Release, and the now-closed Government Center and Old Jail. He has also served assignments in Patrol, Traffic, Internal Affairs, and Training, and served as the Department’s Rangemaster for more than a decade.

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The Chief Deputy Office of Detention Services oversees the Office of Detentions.

Chief Deputy Office of Detention Services, Shane Sowell

Chief Deputy Shane Sowell has been employed with the Dallas County Sheriff’s Office since January 2025. Before joining DCSO, Sowell served a short stint with Brazos County as a Compliance specialist and Internal Affairs Investigator. Sowell has served as the Jail Administrator for Bell and Webb Counties.

Sowell has over 28 years of law enforcement experience. He began his career in 1996 as a jailer with a private correctional facility, where he rose through the ranks quickly. In 2005, Sowell joined the Lamb County Sheriff’s Office as the Jail Administrator, later moving to patrol. During his tenure with Lamb County, Sowell worked in narcotics, warrants, hostage negotiators, and K-9 interdiction specialists.

In 2015, Sowell was called to serve as a State Inspector with the Texas Commission on Jail Standards. Sowell was assigned to sixty counties and was responsible for ensuring compliance with state standards, providing technical assistance, and providing training throughout the State of Texas and on the Federal level.

Sowell is a graduate of the National Jail Leadership Command Academy (Class #32) at Sam Houston State University in Huntsville, Texas.

Sowell currently serves on the Board of Directors of the Texas Jail Association.

• Master Peace Officer Certification – Texas Commission on Law Enforcement
• Master Jailer – Texas Commission on Law Enforcement
• Field Training Officer – Texas Commission on Law Enforcement
• Basic Instructor – Texas Commission on Law Enforcement
• Highway Drug Interdiction Specialist - NNDDA/TCOLE
• Mental Health Specialist – Texas Commission on Law Enforcement
• Marine Safety Officer - Texas Parks and Wildlife
• Hostage Negotiator – Texas Commission on Law Enforcement

Assistant Chief Deputy Eddy Herrera - Eddy Herrera began his law enforcement career in 1990 as a detention officer with the Dallas County Sheriff’s Department.

He was sworn in as a deputy sheriff in March of 1995. He was assigned to Detentions, Warrant Execution, Personnel, Court Services, Patrol, and Internal Affairs.

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Assistant Chief Deputy Debra Williams – Debra Williams began her law enforcement career in 2001 as a Detention Service Officer with the Dallas County Sheriff’s Department.

She served as a Detention Service Officer at both George Allen and the North Tower Facilities.

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Chief Financial Officer Daniel Simon - Over 35 years of extensive and diverse experience in Financial Management, Budgeting, Forecasting, Financial Auditing, Compliance Auditing, Fraud Examining/Auditing, Scoring Vendors for financial stability, Risk Analysis preparation, Quality Assurance Auditing of Bail Bonds

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Elizabeth Lutton is the Legal Advisor for Dallas Sheriff Marian Brown.  She was previously employed by the City of Arlington, Texas, as a Senior Attorney and the City of Odessa, Texas as a Senior Assistant City Attorney.  She is Board Certified by the Texas Board of Legal Specialization in Labor and Employment Law.

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Lakesha Smith is one of two attorneys for Dallas County Sheriff Marian Brown. The legal division handles all of the agency's Public Information Act requests, subpoenas, litigation discovery requests, contracts, employment matters, appeals, and other legal matters.

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Doug Sisk is the Public Information Officer for the Dallas County Sheriff's Office.  Doug started with the Dallas County Sheriff's Office in December 2022. Doug served as a police officer for the City of Duncanville for more than 35 years; during that time, he worked patrol, was one of the original SWAT Team members, and was the first K-9 Officer for Duncanville.

During his time in Duncanville, he served various positions working patrol, K-9, SWAT, Auto Theft Task Force, Crime Prevention/Community Relations, and Public Information Officer for the Duncanville Police Department.