Long Island Criminal Defense Attorneys

Criminal Lawyers Serving Long Island, Nassau County & Suffolk County

If you have been arrested, the experience and trial skills of the lawyer you choose can make a significant impact on whether you walk free or are incarcerated. At Prime & O'Brien, LLP, our Long Island criminal attorneys have an excellent reputation for high quality defense work. When your freedom is threatened, you can't afford to take any chances – you need our firm's 20 years of experience on your side.

Your first action should be to take advantage of a free case consultation. We can review the facts of your case and advise you about your options. It may be possible to get your charges dismissed if you are the victim of a rights violation or other serious police error. Our attorneys need to hear from you as soon as possible after an arrest. Early action could make a significant difference in the outcome of your case.

Top Reasons Why Prime & O'Brien, LLP Should Be Your First Call

  • Prime & O’Brien, LLP has served Long Island residents since 2006
  • Both of our lawyers served as former Nassau County prosecutors
  • Our firm has a long track record of success and case victories
  • Mr. O'Brien serves on the Board of Directors for the Criminal Courts Bar Association
  • Mr. O'Brien teaches International Law and Comparative Law at St. John's University
  • Mr. Prime has been acting as Mayor of the Village of South Floral Park since 2010
  • Mr. Prime is on the Board of Directors for the Nassau County Bar Association

What Makes Our Firm Different?

Not only is Prime & O’Brien, LLP focused strictly upon criminal law, one of our founding attorneys, Dennis O'Brien, is a law professor at St. John's University. Geoffrey Prime, the other partner, is the Chair of the Board of Directors at Nassau Community College, and the Mayor of the Village of South Floral Park. They believe that their ability to craft an effective criminal defense case is far beyond the ordinary.

They have both served as prosecutors in Nassau County, and have a deep insight into how to best present a case for the defense. It is a well-established fact that the quality and experience of the defense can significantly impact the outcome in a criminal case. If you are facing charges or are currently under investigation, call our firm now. Don't be afraid to exercise your right to remain silent. Do not discuss your case with anyone. You have a right to a defense attorney – make your choice the right one.

Defending Against DWI and Crimes in Long Island and Nassau County

Looking for a lawyer for your criminal case in Long Island? We can help in a wide range of cases:

Searching for an Attorney to Handle Your Criminal Case?

We take our responsibility to clients personally. Our success is based upon our commitment and insight into how to operate within the criminal justice system. We understand the dangers of being caught in the system only too well. State and federal prosecutors have almost unlimited resources to call upon. You must have an equally powerful and well-connected defense lawyer to fight back successfully.

There is no "minor" criminal charge. A conviction on your record will follow you wherever you go – when applying for a job, establishing a business partnership, or in relationships. Taking action early to defend against your charges, with the assistance of our qualified legal team, may save you from the consequences of a conviction or reduce the impact on your freedom and future opportunities.

Office Location
249 Elm Street
2nd Floor
Mineola, NY 11501
(516) 670-5992


Contact Prime & O'Brien, LLP to schedule a free consultation. We're on your side.


We serve clients in Garden City, Hicksville, Hempstead, Huntington, Nassau County and Suffolk County.

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