• Established in 1990
  • Firm Size 8
  • Nassau County's Premier Criminal Defense Attorneys.
  • Peer Reviews

    4.9/5.0 (24)
  • Profile Visibility [ i ]

About this firm

Collins Gann McCloskey & Barry PLLC is a firm concentrating on state and federal criminal defense and also on dietary supplement law, with scores of major felony cases tried to verdict and thousands of clients successfully defended. The firm was founded by three former prosecutors now having more than sixty years collective experience in the practice of criminal law. The partners frequently lecture on trial practice and criminal law issues, serve as adjunct faculty at Hofstra University School of Law, and hold offices in numerous professional associations and criminal law organizations. Firm partners are admitted to practice before the New York, Pennsylvania, Massachusetts, Texas, District of Columbia and Maryland State courts, the Federal Courts of the Eastern and Southern Districts of New York and the Western District of Texas, the U.S. Court of Federal Claims, the U.S. Court of Appeals for the Federal Circuit, the U.S. Court of Appeals for the Second Circuit, the U.S. Court of Appeals for the Armed Services and the United States Supreme Court. Partner Richard D. Collins is a nationally recognized authority on the defense of sports drug cases. Partner Marc C. Gann specializes in the area of criminal defense litigation, handling a variety of criminal matters from misdemeanor offenses to serious felonies such as murder, robbery and assault. The firm has attained the highest rating available in Martindale-Hubbell.

Areas of Practice (80)

Specific Practice Area and Industry Group Details across multiple offices:

  • Criminal Defense
  • Criminal Law
  • Criminal Forfeiture
  • Criminal Investigation
  • Criminal Prosecution
  • Criminal Fraud
  • White Collar Crime
  • Anabolic Steroids
  • Assault
  • Assault and Battery
  • Burglary
  • Driving While Intoxicated
  • DWAI
  • Electronic Surveillance
  • Extortion
  • Federal Criminal Law
  • Felonies
  • Forgery
  • Hit and Run
  • Homicide
  • Mail Fraud
  • Manslaughter
  • Sports Law
  • Misdemeanors
  • Money Laundering
  • Murder
  • Parole and Probation
  • Search and Seizure
  • Sex Crimes
  • Sexual Assault
  • Shoplifting
  • Stalking
  • Theft
  • Traffic Violations
  • Vehicular Homicide
  • Weapons Charges
  • Wire Fraud
  • Drugs and Narcotics
  • Drug Trafficking
  • Drug Forfeiture
  • Drug Crimes
  • Controlled Substances Law
  • Civil Drug Forfeiture
  • Anabolic Steroid Crimes
  • Dietary Supplement Law
  • Trademarks
  • Trademark Registration
  • Trademark Protection
  • Trademark Licensing
  • Service Marks
  • Sports Contracts
  • Food, Drug and Cosmetic Law
  • Larceny
  • Arson
  • Arson and Insurance Fraud
  • Trespass
  • Child Pornography
  • Criminal Mischief
  • Child Welfare
  • Guardian Ad Litem
  • Guardianship
  • Receiverships
  • Embezzlement
  • Public Lewdness
  • Tax Fraud
  • Robbery
  • Identity Theft
  • Internet Crimes
  • Resisting Arrest
  • Diet Drug Litigation
  • Vehicular Crimes
  • Fraud
  • Conspiracy
  • Computer Crime
  • Probate
  • Litigation
  • Personal Injury
  • Commercial Litigation
  • Regulatory Law

People (8)

Anabolic Steroid Crimes, Dietary Supplement Law, Controlled Substances Law, Sports Law, Criminal Defense, Criminal Law, ...

Peer Reviews
5.0/5.0 (3) Reviews
Platinum Client Champion

Criminal Defense, Criminal Law, DUI/DWI, Theft, Wire Fraud, Weapons Charges, Vehicular Homicide, Traffic Violations, Sta ...

Peer Reviews
5.0/5.0 (1) Review
Silver Client Champion

Criminal Law, Personal Injury, Immigration Law, Residential Real Estate

Peer Reviews
4.9/5.0 (11) Reviews

Criminal Law, Immigration Law, Personal Injury & Immigration

Peer Reviews
4.8/5.0 (9) Reviews
Gold Client Champion

Criminal Law, Criminal Defense

Peer Reviews
No Reviews

Criminal Defense, Criminal Law, Personal Injury, Expungements

Peer Reviews
No Reviews

Dietary Supplement Law

Peer Reviews
No Reviews

Peer Reviews

Bar Registry

  • Criminal Trial Practice

Locations (1)


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