John S. Sitzler, Esquire
Of Counsel
John S. Sitzler is an experienced and effective defense attorney who has been practicing criminal and DWI/DUI defense in New Jersey since 1976. In 2022, Mr. Sitzler joined the law firm of Rosenberg Perry & Associates as Of Counsel, where he continues to zealously defend individuals charged with criminal and DWI/DUI matters.
Mr. Sitzler graduated from Vermont Law School and immediately after served as a judicial Law Clerk to the Honorable Herman Belopolsky, J.C.S., Honorable Harold B. Wells, III, A.J.S.C. and Honorable W. Thomas McGann, J.C.S. Upon passing the Bar in New Jersey, he joined the firm of Mathews and Sitzler as an associate and was made partner the following year. In 1990, he and his father, John O. Sitzler, Jr., formed the law firm of Sitzler and Sitzler. At his firm, Mr. Sitzler handled thousands of criminal and DWI/DUI matters throughout New Jersey.
Mr. Sitzler’s experience includes trying criminal jury trials in the Superior Court of New Jersey, criminal and DWI/DUI trials in various Municipal Courts throughout New Jersey and trials at the New Jersey Office of Administrative Law. In his DUI/DWI practice, Mr. Sitzler is one of approximately 50 New Jersey attorneys certified in the operation and maintenance of the Drager Alcotest 7110, the instrument used to test breath samples for blood alcohol content (“BAC”) in New Jersey. In November, 2022, Mr. Sitzler became certified in the Drager Alcotest 9510, the instrument that will be used to test breath samples for BAC in New Jersey in 2023 and beyond.
Mr. Sitzler has served as the Solicitor for the Wrightstown Borough and Delran Township Planning Boards. Mr. Sitzler also served as the Municipal Prosecutor for various municipalities over the years, including Pemberton Township, Hainesport, Cinnaminson, Pemberton, Mount Holly, New Hanover, and Springfield. His time as a Municipal Prosecutor provided Mr. Sitzler with invaluable insight and experience in the prosecution and defense of DWI/DUI and criminal matters.
Outside of the practice of law, Mr. Sitzler has served as a lecturer and professor in various areas of criminal and DWI/DUI law. From 2000 to 2013, Mr. Sitzler taught as an adjunct Professor of Law at Widener University School of Law. Wilmington, Delaware campus and taught Alcohol, Vehicle, and the Law, one of the most popular courses at Widener. Mr. Sitzler also frequently serves as a lecturer in New Jersey at DWI/DUI Continuing Legal Education seminars.
Mr. Sitzler is a lifelong resident of Burlington County and a proud husband, father and grandfather.
Education
- Vermont Law School, South Royalton, Vermont, 1976, J.D.
- Rider College, 1973, B.A.
- Certified Alcotest Operator
- Alcotest 7110
- Alcotest 9510
Admissions
- New Jersey
- U.S. District Court District of New Jersey
- U.S. Supreme Court
Classes/Seminars
- Convicting Intoxicated Drivers in Complex Cases February 2009
- Technical and Scientific Defenses in Aloctest Case May 2009
- Overcoming the Crawford Challenge July 2009
- Defending an Ethics Case August 2010
- Alcotest Round Table May 2011
- Field Sobriety Tests at Trial May 2011
- New Court Rules August 2011
- Beat the Machine September 2012
- Common R/E Ethics Issues November 2012
- New & Successful DWI Defense November 2012
- Boardwalk Seminar, April 2013
- New Jersey DWI Blood Cases, May 2013
- Missouri v. McNeely May 2013
- New Gun Laws in New Jersey, September 2013
- DWI Mock Alcotest Trial, December 2013
- SFST & Blood Testing, May 2014
- RPC’s for Attorneys, September 2014
- Arrest, Search, and Seizure, October 2014
- Search and Seizure October 2014
- Ethical Challenges Part I, November 2014
- Search and Seizure Review September 2015
- Vacating a DWI Conviction October 2015
- It’s only a DUI case…What Could Go Wrong? – Top DUI Mistakes – Speaker December 2016
- The History of Closing Arguments in American Cinema – Speaker December 2016
- Cross Examination of SFT Evidence March 2016
- Criminal Justice Reform / Central Judicial Processing Court April 2016
- The Important New Bail Law for New Jersey: Why Your Client Cannot Get of Out Jail April 2016
- Municipal Court Spring Review June 2016
- Ethical Emails – A Law Firm Policy July 2016
- Municipal Court Review – Summer – Instructor July 2016
- Theodore Roosevelt and the Progressive Era August 2016
- DWI Double Jeopardy June 2017
- Immigration Law September 2017
- Supreme Injustice November 2017
- Revisiting Younger’s 10 Commandments December 2017
- Shining the Light on SFST’s in Court
- Blood Evidence in DWI Cases: Mastering the Science
- Lecture speaker for continuing legal education classes, 2008 to present
- National Association of Criminal Defense Lawyers “Big Easy Cross” New Orleans, LA
Professional Associations
- Burlington County Bar Association
- Ocean County Bar Association
- Gloucester County Bar Association
- Atlantic County Bar Association
- Camden County Bar Association
- New Jersey State Bar Association
- American Trial Lawyers Association
- National Criminal Defense Lawyers Association
- National College of DUI Defense
- Faculty at Garden State CLE
- Adjunct Professor Widener University School of Law 2000-2013
- Honors and Awards
- SJ Magazine, 2007‑2014, John was voted top DUI attorney by his peers
- South Jersey Magazine, 2010-2017, John was voted top DUI attorney by the public
Assistant
- Crissy DeSantis, Paralegal