Our Town Justices

About Our Justices

Hon. Thomas Mansfield brings over 30 years of legal experience to the bench, having graduated from New York Law School in 1985 and being a member of the New York bar since 1986.  He started his career as a litigator with the New York City Law Department and is a founding member of the local law firm, Mansfield, Gautier & Rosenthal LLP. He has also previously served as a Dutchess County Legislator and on the staff of the New York State Senate. He is currently a member of:

  • Dutchess County Bar Association
  • New York State Bar Association
  • New York State Magistrates Association

He has served as Town Justice in Red Hook since January 2019.

Hon. Jonah Triebwasser brings over 50 years of experience to the bench as a police officer, investigator, attorney, prosecutor and judge. He is a graduate of the John Jay College of Criminal Justice (A.A., 1971; B.S. 1972) and New York Law School (J.D. 1979), and is a member of:

  • Dutchess County Bar Association (Past-President)
  • Dutchess County Magistrates Association (Past-President)
  • New York State Bar Association (Member, House of Delegates)
  • New York State Magistrates Association (Past-President)

He has lectured extensively on legal topics throughout the state and is the author of West Publishing’s Criminal Law Handbook (5th, 6th and 7th editions) as well as Magill’s Handbooks for Justice Courts.

He has served as Town and Village Justice in Red Hook since 2007.

Related Documents

The Memorial Day 2022 parade included a contingent of Town Officials. Left to right are: Town Board members Bill Hamel and Julai Solomon, Town and Village Justice Hon. Jonah Triebwasser, Town Board member Christine Kane, Town Supervisor Robert McKeon, Highway Superintendent Theresa Burke, Town Clerk Deanna Cochran, and Deputy Town Clerk Katie Khakhar.


The National Judicial College in Reno, Nevada, has named Judge Jonah Triebwasser as one of their Judicial Ambassadors.
Through its Judicial Ambassador Initiative, NJC will support and educate judges and stakeholders about eliminating the masking of Commercial Driver’s License (CDL)-related traffic offenses on CDL records and other educational initiatives that will improve traffic safety. To provide this needed support and education, the Judicial Ambassadors will continuously educate themselves about the latest research on evidence-based practices that are shown to enhance Commercial Motor Vehicle traffic safety.
Judicial Ambassadors will assist in designing and implementing education and training materials for judges and support judicial education efforts by researching and drafting articles for the Federal Motor Carrier Safety Administration (FMCSA) and NJC publications.
They will research, prepare, and present webinars and courses on issues involving CMV safety, CDLs, and masking at annual judicial education conferences, lunch and learn opportunities, and other seminars.
Judicial Ambassadors are responsible for determining venues for providing education and locating avenues for supporting judges in eliminating masking and deferrals. Finally, they will attend annual NJC/FMCSA/Court Roundtable meetings and conference calls every two months.

Judge Jonah Triebwasser was in Reno, Nevada, at the National Judicial College, as part of the planning committee for the Fall conference on issues concerning commercial drivers licenses (trucks and busses.) 

jt NJC

Town and Village Justice, the Hon. Jonah Triebwasser, administered the constitutional oaths of office to Red Hook's new Village Trustee, Declan Dwyer-McNulty, and Mayor Karen Smythe.


The Dutchess County Magistrate's Association welcomed the 9th Judicial District Administrative Judge, the Hon. Anne E. Minihan, as their guest of honor and keynote speaker at their recent dinner meeting. As administrative judge, Judge Minihan supervises all courts in the Hudson Valley.  Judge Minihan spoke at the dinner of the importance of the town and village courts in the administration of justice.
Shown in the photo are: New York State Magistrates Association Past President Hon. Thomas Dias (Town of Ancram Justice, Retired), Dutchess County Magistrate's Association President and New York State Magistrates Association Third Vice President Hon. Susan Sullivan-Bisceglia (Town of LaGrange Justice), Judge Minihan, and New York State Magistrates Association Immediate Past President Hon. Jonah Triebwasser (Town and Village of Red Hook Justice.) 

(photo by Hon. Ibis Guzman)



 to the new officers and directors of the Red Hook Fire Company. I was honored to swear them in to their new positions. Thank you to all of the outstanding volunteers of the fire company who keep us safe every day.
fire dept

Judge Jonah Triebwasser administered the constitutional oath of office to Town Board members Christine Kane and Julia Solomon.

IMG_3123Judge Jonah Triebwasser administered the constitutional oath of office to Town Clerk Deanna Cochran and Deputy Town Clerk Katie Khakher on New Year's Day 2022.

2022 clerk sweringJudge Jonah Triebwasser took part in the John Jay College of Criminal Justice Pre-Law Institute's panel on life on the bench.

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Judge Jonah Triebwasser was honored by his fellow judges in Columbia, Dutchess, Greene and Rensselaer counties for his 18 months of service as president of the New York State Magistrates Association during the Covid crisis.

The clock was presented to Judge Triebwasser by the Hon. Dr. Carrie O'Hare, President of the Columbia County Magistrates Association and justice in the Town of Stuyvesant.DSC_0007DSC_0017

Hon. Jonah Triebwasser administered the oath of office to the new Associate Red Hook Village Justice, the Hon. Thomas Mansfield, who is also Town Justice. Proud spouse Miriam Altshuler holds the Bible. Congratulating Judge Mansfield are members of the Red Hook Village Board: Deputy Mayor Brent Kolvachik, Mayor Karen Smythe and Trustee Charles Laing.DSC_0018DSC_0020_LIJudge Jonah Triebwasser attended the New York State Magistrates Association educational conference in Niagara Falls where he ended his term as President of the statewide judges' association. He turned over the blue gavel  of office to the new President, the Hon. Karl Manne of Herkirmer Town Court, and in turn Judge Manne presented Judge Triebwasser with the eagle sculpture. 244486980_968251970700106_7547151754174504149_n244497734_968251937366776_7173319450636905894_nJudge Jonah Triebwasser administered the oath of office to the president of the New York State Association of Magistrates Court Clerks, Dawn Marie Klingner of Amenia, New York, at their conference in Albany.1429Joining Judge Jonah at the conference were Red Hook Court Clerks Nancy Roberts, Rebecca Kent and Kathy Fell.1294Judge Jonah Triebwasser administered the constitutional oath of office to the Village of Red Hook's new mayor, the Honorable Karen Smythe. Her husband, Neville, is holding the Bible.IMG_2251IMG_2259Judge Jonah Triebwasser administers the oath of office to former Town Justice Hon. Jeffrey C. Martin as Dutchess County Family Court Judge. In the center is Jeff’s wife, Michelle.48414591_300444234147553_6325156632686755840_nJudge Triebwasser swears in newly appointed Town Justice Thomas Mansfield, In the center is Tom’s wife Miriam.IMG_2713Judge Jonah administers the oath of office to the new Town of Pine Plains Justice, the Hon. Ibis Guzman. In the center is his wife Sarah.49151131_301252890733354_8951563944900689920_oJudge Jonah is seen with Judge Jeffrey Martin (Dutchess County Family Court), Judge Tom Dias (Town of Ancram) Judge Michael Hayes (Town of LaGrange) Judge Susan Sullivan Bisceglia (Town of LaGrange and Village of Wappingers Falls) and Judge Barbara Seelbach (Town of Clinton) as Judge Hayes is sworn in as Dutchess County Surrogate.49668495_304827443709232_326626937101352960_oMany of the same judges celebrated as Judge Sullivan Bisceglia was sworn in as Town of LaGrange justice.49491054_303121947213115_59773532304834560_o