(T) (202) 789-6049
(T) (410) 230-1340
(F) (202) 789-6190

  tdibiagio@bdlaw.com
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1350 I Street, N.W.
Suite 700
Washington, DC 20005-3311

Washington
Baltimore

• Commercial Litigation
• Environmental Litigation
• White Collar Defense/Corporate Compliance
• Litigation

• Dickinson College (B.A., 1982)
• University of Richmond School of Law (J.D., 1985)

• Maryland (1985)
• District of Columbia (1986)
• U.S. District Court for the District of Maryland (1986)
• U.S. District Court for the District of Columbia (1988)
• U.S. Court of Appeals for the Fourth Circuit (1986)
• American Bar Association

• U.S. Attorney for the District of Maryland (2001-2004)

Mr. DiBiagio is a Principal in the Washington, D.C. and Baltimore offices of Beveridge & Diamond, P.C., where he focuses his practice on complex civil litigation and white collar criminal defense.

Mr. DiBiagio is a seasoned civil and criminal trial lawyer and litigator with over twenty three years of experience before federal and state courts, covering a wide range of areas including commercial litigation, environmental litigation, and criminal defense.

Prior to joining the firm, Mr. DiBiagio served in a variety of law enforcement and legal positions. In 2001, he was appointed United States Attorney for the District of Maryland, where he spearheaded efforts against violent drug gangs, public corruption and corporate fraud. Under his leadership, the United States Attorneys Office successfully prosecuted significant public corruption, corporate fraud and major violent crime and drug trafficking cases:

• During his tenure, the United States Attorneys Office for the District of Maryland successfully investigated and prosecuted John M. Rusnak for committing the largest bank fraud in the history of the United States. Rusnak's currency trading activities caused a $691 million loss for Allfirst Financial.

• Mr. DiBiagio won a major conviction in a public corruption case against Baltimore City Police Commissioner Edward T. Norris for his abuse of an off-the-books expense account.

• The Office won a major corporate fraud case with its successful prosecution of Nathan A. Chapman, Jr., on multiple counts of defrauding the State of Maryland Employee Pension System and shareholders of his investment firm.

• He successfully prosecuted several violent drug organizations and gangs in Maryland, including the Lexington Terrace Boys — an organization that was responsible for seven murders in Baltimore City.

• Mr. DiBiagio personally and successfully prosecuted Eric Stennett for federal drug and firearms offenses after his acquittal in state court for the killing of a Baltimore City police officer.

• The Office convicted Darrell L. Brooks of the fire bombing murder of seven members of the Dawson family.  

From 1991 to 1999, Mr. DiBiagio served as an Assistant United States Attorney and tried numerous cases in the area of financial frauds, money laundering, drug trafficking, and violent crime.

Professional Highlights

Mr. DiBiagio is currently an instructor in Constitutional Law at the United States Naval Academy.  He is a frequent commentator for National Public Radio.

Mr. DiBiagio recently led negotiations in the first deferred prosecution agreement in an environmental crimes case. After extensive negotiations, federal prosecutors agreed not to criminally charge the client as a result of its operation of two wastewater treatment facilities. The government alleged that the company failed to comply with reporting requirements under the Clean Water Act. Under the terms of the deferred prosecution agreement, the client agreed to pay $2 million and institute changes in its operation and environmental oversight.

Mr. DiBiagio is presently the lead trial attorney in a ground water contamination case involving over 100 plaintiffs.

Mr. DiBiagio also represented a major municipal water authority in in connection with a criminal investigating conducted  by the Environmental Crimes Section of the U.S. Department of Justice.  After a two and half year investigation, the Department of Justice declined to bring any criminal charges against the client.