David K. Chen
Partner
Biography
David K. Chen is a Partner at American Lawyers Group, leading the Criminal Defense and DUI Defense department. Prior to joining the firm, David served as an assistant commonwealth attorney, giving him invaluable, first-hand knowledge of how prosecutors build cases. He has defended hundreds of clients facing felony and misdemeanor charges in Northern Virginia, securing numerous dismissals, suppressions of evidence, and trial acquittals.
David specializes in challenging complex forensic evidence, particularly in DUI defense cases. He has completed certification in breathalyzer device testing and field sobriety testing science, allowing him to identify police errors that other defense attorneys might miss. David is passionate about protecting the constitutional rights of the accused and ensures every client gets a rigorous, customized defense.
Publications
- "Challenging Breathalyzer Machine Calibration Standards," Virginia Criminal Defense Journal
- "Constitutional Rights and Search Warrants in Drug Cases," Defense Review
Speaking Engagements
- Speaker: "Analyzing Breath Testing Device Errors in Court," VACDL Seminar
- Presenter: "Cross-Examining Arresting Officers in DUI Cases," Virginia Bar Association