Offices Closed for Thanksgiving Holiday: All county offices will be closed on Thursday, Nov. 23, and Friday, Nov. 24, for the holiday. This includes parks offices, public works, courts and all other administrative offices. Offices will re-open Monday, Nov. 27.

Sammy Knapp, Constable - Precinct 3

Constable Sammy Knapp

Constable, Precinct 3
Collin County Sub-Courthouse
920 E. Park. Blvd.
Suite 230
Plano, TX 75074
972-881-3070 (Plano)
972-424-1460 ext. 3070 (Metro)

  • Basic Law Enforcement training: Dallas County Sheriff Department
  • Patrol/Motor Officer: Grand Prairie Police Department
  • Air Piracy: Department of Public Safety, DFW Regional Airport
  • Sales Manager: Service Corporation International
  • Patrol/Senior Traffic Officer/Motor Officer/Negotiator: Plano Police Department
  • Security Coordinator/mega church: Prestonwood Baptist Church, Plano
  • Deputy Constable:  Collin County Pct. 3
  • Constable: Collin County Pct. 3
  • Member of Prestonwood Baptist Church
  • Texas Municipal Police Association
  • Texas Justice of Peace and Constable’s Association
  • Justice of Peace and Constable’s Association
  • Texas Police Association
  • Texas Association of Hostage Negotiators
  • Plano Masonic Lodge
  • Scottish Rite of Freemasonry, Dallas, Texas
  • Hella Shrine, Garland, Texas
  • Bryan Adams High School, Dallas, Texas
  • Bishop College, Dallas, Texas
  • Collin College, Plano, Texas
  • Master Police Officer Certificate