Law Office of Dean B. Arnold
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Practice Areas

Dean Arnold defends individuals and corporations in all aspects of criminal law and civil litigation arising out of government investigations.  He represents clients in grand jury proceedings, at trial, and on appeal. 

Dean’s practice is focused on federal criminal defense, with an emphasis on white collar matters involving financial crimes, regulatory investigations, and civil enforcement proceedings.  He also defends clients charged with general criminal offenses, advises clients on confidential matters relating to potential criminal liability, and conducts internal investigations.

Dean’s litigation practice includes national security matters and cases involving classified information.  He has been issued federal security clearances to litigate matters governed by the Classified Information Procedures Act (CIPA) and involving evidence obtained under the Foreign Intelligence Surveillance Act (FISA).

Representative Matters


  • Co-counsel for corporate officer indicted for Sherman Act violations in the global liquid crystal display (“LCD”) panel market
  • Co-counsel for target of a federal grand jury investigation into alleged price-fixing in public real estate foreclosure auctions


  • Lead counsel for federal inmate in Section 2255 motion seeking to collaterally attack conviction and sentence
  • Lead counsel for client on direct appeal from federal court drug conviction and minimum mandatory sentence
  • Retained by consulate of foreign country to provide advice and counsel on appellate issues surrounding foreign nationals’ criminal convictions in the United States
  • Retained to appeal state court order denying Pitchess motion in ancillary proceeding to federal habeas petition 

Commercial Litigation

  • Defended developer in litigation and arbitration concerning construction of multi-family housing development
  • Co-counsel for plaintiff in product liability and wrongful death action
  • Represented multiple buyers of condominiums in resort town seeking specific performance of purchase and sale contracts
  • Co-counsel for plaintiff in bad faith insurance litigation

Drug Offenses

  • Co-counsel for federal jury trial in multi-defendant Title III drug conspiracy investigation
  • Lead counsel for client charged as part of multi-defendant drug investigation
  • Lead counsel for nursing professional charged with attempted prescription fraud
  • Lead counsel for client charged with minimum mandatory drug trafficking offense
  • Lead counsel for individual charged with conspiracy to unlawfully distribute prescription medications

Financial Crimes

  • Co-counsel for plaintiff in civil trial seeking to recover monies unlawfully obtained by defendants
  • Represented fiduciary facing potential criminal and civil liability based upon allegations of embezzlement


  • Lead counsel for client indicted for trafficking unlawful firearms and unlawful possession of firearms

Food, Drug, & Cosmetic Act

  • Retained as local counsel to represent high-level employees of nutritional supplement retailer in drug misbranding investigation

Lacey Act

  • Lead counsel for target of federal grand jury investigation into alleged Lacey Act violations


  • Lead counsel for former Vice President of Accounting and Finance in bankruptcy examiner’s investigation and anticipated criminal and civil litigation concerning alleged $600MM corporate Ponzi scheme and related securities violations

Shareholder Litigation

  • Lead counsel for directors and officers in derivative shareholder action concerning the management of corporate assets
  • Co-counsel for purchasing company defendant in direct shareholder action challenging sale of substantially all the corporation’s assets to client


  • Co-counsel for foreign national indicted for conspiracy, providing material support to terrorism, and conspiracy to provide material support to a designated foreign terrorist organization (CIPA case)
  • Co-counsel for foreign national named a defendant in multidistrict civil litigation (MDL) concerning the attacks on September 11, 2001
  • Pro bono counsel for client seeking his release and repatriation from Guantanamo Bay detention facility (CIPA case)

Trade Secrets

  • Co-counsel for manufacturing corporation seeking injunctive relief and damages for copyright infringement and Trade Secrets Act and Lanham Act violations
  • Co-counsel for multinational investment firm seeking injunctive relief protecting company’s proprietary information and damages for violating confidentiality agreement


  • Lead counsel for multiple employees of the world’s largest express transportation company subpoenaed in federal grand jury investigation concerning the online pharmaceutical industry
  • Retained by multinational financial services corporation to represent supervisor subpoenaed to testify in a criminal trial
  • Co-counsel for political subdivision of the State of California opposing federal grand jury subpoena
803 Hearst Avenue    |     Berkeley, California 94710    |     (510) 900-9510

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