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Gerard C. McCloskey, Esq.

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Experienced Counsel in a Full Range of Criminal Cases

Gerard C. McCloskey is a former Assistant District Attorney with experience in all aspects of criminal and civil law. Gerard has zealously defended the rights of his clients in a full range of criminal cases, ranging from minor traffic infractions to the most complex, serious felony charges.

Over the course of his legal career, Gerard has developed a reputation as a skilled litigator. Due to his expertise in the courtroom, he was hired by Hofstra University School of Law, where he currently serves as a Special Professor of Law teaching trial advocacy. In 2011 he formed The Law Offices of Gerard C. McCloskey PLLC, opening a Long Island office in Melville followed by the opening of the Mineola office, and subsequently joined forces with David J. Barry to form McCloskey & Barry, PLLC. In 2016, Gerard and Dave joined with longtime criminal defense attorneys Rick Collins and Marc Gann, joining the firm as partners

Ranked as One of the Country’s Top DWI Attorneys

Prior to entering into private practice, Gerard was an Assistant District Attorney with the Nassau County District Attorney’s Office. He worked in the District Court Trial Bureau, the DWI Trial Bureau, the Felony Screening Bureau, the Grand Jury Bureau, and the prestigious Vehicular Crimes Bureau, where he handled high-profile felony cases, including homicides. Due to this vast experience, Gerard has a deep understanding of law enforcement techniques, prosecutorial strategy, and the knowledge needed to successfully defend any criminal case.

During his tenure as an ADA, Gerard had the opportunity to handle thousands of criminal cases, including but not limited to, Homicide, Assault, DWI, Drug Possession and Sale, Larceny, Harassment, Criminal Contempt, Criminal Possession of a Weapon, Fraud, Criminal Impersonation, Robbery, and Burglary offenses. Overall, Gerard had the opportunity to try more than 20 cases to verdict, conducted more than 100 pretrial hearings and presented more than 100 cases to a grand jury. In addition, he has been identified as one of the top DWI attorneys in New York by the National Advocacy for DUI Defense (NAFDD), and ranked as a Superior DWI Attorney.

A Long Island Criminal Defense Attorney Ready to Fight for Your Rights

With his years of experience in criminal defense, Gerard McCloskey and his partners at Collins Gann McCloskey & Barry PLLC can help build a winning case for you and provide you with the skilled defense you need.

Practice areas

  • Criminal law
  • Personal injury
  • Real estate law

Professional associations

  • Nassau County Bar Association, Member
  • Nassau/Suffolk Law Services, Member of the Board of Directors


  • Top 100 Lawyers, National Advocacy for DUI Defense
  • Top Legal Eagle, Long Island Pulse Magazine
  • Mock Trial Coach of the Year Award, American Bar Association
  • MH - Client Reviewed
  • Avvo
  • SuperLawyers
  • Martindale-Hubbell - AV

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