Double Oak Police Department

It is the mission of the Double Oak Police Department to maintain a safe and peaceful community environment by providing effective and efficient law enforcement services through community partnerships, public education and quality service.

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About Us

Double Oak is protected 24-hours a day, 365 days a year, by a full-time law enforcement team.

The Double Oak Police Headquarters is located inside the Double Oak Town Hall.

In any emergency, Double Oak residents can dial 9-1-1 to receive a Dispatcher at the Denton County Sheriff's Department.

The Double Oak Police Department was officially activated during the Council Meeting on October 3rd, 1988 at 7:30pm. Double Oak PD began using Denton County Sheriff’s Office Dispatch for receiving calls for service, reducing response times to a matter of minutes. The police department began actively patrolling the streets of Double Oak for its citizen’s protection.

Contact Info

Phone:
Dispatch: (940)349-1600 x9
Dispatch: (972)434-5500
Administration: (972)355-5995

Fax:
(972)539-9613

Facebook Page
Group of Double Oak police officers standing together in front of flags and a town seal wall in a formal setting.
Police Chief Daniel Miller wearing sunglasses and a dark uniform with badges and a camera around his neck, standing in front of a brick building.

Meet the Department

Daniel Miller
Police Chief
Daniel.Miller@doubleoak.texas.gov

Daniel Miller serves as Chief of Police for the Town of Double Oak, bringing nearly two decades of law enforcement experience and a reputation for integrity, leadership, and community focus. His career includes senior roles at the Rowlett Police Department, where he oversaw major operational divisions. With advanced degrees in criminology and organizational leadership, as well as credentials from the FBI National Academy, Chief Miller leads with professionalism and strategic vision. He is committed to building trust, fostering transparency, and guiding a police department that reflects the values of Double Oak.

Officers

  • Police Chief Daniel Miller

    Daniel Miller

    Chief of Police

  • Assistant Chief Cassandra Gaines

    Cassandra Gaines

    Assistant Chief

  • Detective Rosa Halfmann

    Rosa Halfmann

    Detective (Sgt.)

  • Corporal Nathan Noble

    Nathan Noble

    Corporal

  • Officer Rosa Riojas

    Rosa Riojas

    Officer

  • Officer Timothy Henderson

    Timothy Henderson

    Officer

  • Officer Reed Williams

    Reed Williams

    Officer

  • Officer Edward Coronado

    Edward Coronado

    Officer

  • Officer Ruben Rivas

    Ruben Rivas

    Reserve Officer

  • Officer Brett Bourgois

    Brett Bourgeois

    Reserve Officer

  • Officer Scott Trepinski

    Scott Trepinski

    Reserve Officer

  • Officer Lanis Broderick

    Lanis Broderick

    Reserve Officer

Roster

Name Rank Position Served Since Email
Daniel MillerChiefFull-Time2025daniel.miller@doubleoak.texas.gov
Cassandra GainesAssistant ChiefFull-Time2021cassandra.gaines@doubleoak.texas.gov
Rosa HalfmannDetective (Sgt.)Full-Time2023rosa.halfmann@doubleoak.texas.gov
Nathan NobleCorporalFull-Time2023nathan.noble@doubleoak.texas.gov
Rosa RiojasOfficerFull-Time2019rosa.riojas@doubleoak.texas.gov
Timothy HendersonOfficerFull-Time2022timothy.henderson@doubleoak.texas.gov
Reed WilliamsOfficerFull-Time2025reed.williams@doubleoak.texas.gov
Edward CoronadoOfficerFull-Time2025edward.coronado@doubleoak.texas.gov
Ruben RivasReserve OfficerPart-Time2006ruben.rivas@doubleoak.texas.gov
Brett BourgeoisReserve OfficerPart-Time2011brett.bourgeois@doubleoak.texas.gov
Scott TrepinskiReserve OfficerPart-Time2020scott.trepinski@doubleoak.texas.gov
Lanis BroderickReserve OfficerPart-Time2021lanis.broderick@doubleoak.texas.gov