John Sung Jin Han

John S. Han is a criminal defense attorney with prior experience as a:

• Public defender in the U.S. Navy
• Military Trial Judge with the Navy-Marine Corps Trial Judiciary
• Assistant DA with the Philadelphia District Attorney's office
• Federal Prosecutor with the U.S. Department of Justice
• Trial lawyer in the DOJ's Organized Crime and Gangs Section

He represents clients facing investigation and prosecution by both State and Federal Law Enforcement authorities throughout Pennsylvania including Montgomery, Bucks, Philadelphia, Chester, Delaware, Lancaster, Berks, Lehigh, and Northampton counties.

John's experience in criminal law encompasses the below federal felony crimes:

• Federal Offenses
• Murder
• RICO
• Violent Crimes
• Firearm Offenses
• Drug Offenses
• Extortion
• Bribery
• Conspiracy
• Wire Fraud
• Mail Fraud
• Theft
• Illegal Gambling
• Loan Sharking
• Child Pornography
• Transport of Stolen Property
• Racketeering

For 15 years as a federal prosecutor, John handled the most complex and wide-ranging RICO cases against the Mafia and other organized crime groups. He knows all the tactics and methods used to conduct federal investigations and prosecutions. John will bring this knowledge and experience to bear in defending his clients against federal law enforcement actions.

State Crimes
John also represents clients facing investigation and prosecution by State Law Enforcement authorities for criminal violations, such as those listed below.

• Murder
• Attempted Murder
• Manslaughter
• Vehicular Homicide
• Assault
• Conspiracy
• Terroristic Threats
• Rape / Sexual Assault
• Burglary
• Criminal Trespass
• Theft
• Receiving Stolen Property
• Fraud
• Drug Offenses
• Firearm Offenses
• Child Pornography
• Illegal Gambling
• DUI

As a Philadelphia Assistant District Attorney for 6 years, John prosecuted serious felony jury trials involving violent crime, drug trafficking, and public corruption.

He knows his way around the courtroom. John will leverage his substantial trial experience to provide high quality and zealous representation of clients facing state criminal prosecution.

Military Criminal Defense
John represents clients facing the following military proceedings:

• General Court-Martial
• Special Court-Martial
• Article 32 Preliminary Hearings
• Administrative Separation Discharge Boards
• Boards of Inquiry

As a military judge for 4 years, he also presided over numerous courts-martial involving sexual assault and other violations of the Uniform Code of Military Justice. John spent 5 years specializing in the defense of clients accused of sexual assault. John will apply the wide scope and depth of his experience to assist military service members facing court-martial and administrative separation discharge boards.

Born in Seoul, South Korea, John S. Han immigrated to the United States with his parents and younger sister at the age of six. He would later graduate with Class Honors from the University of Michigan with a B.A. in Economics in 1990. John then attended The American University, Washington College of Law, earning his Juris Doctor Degree in 1993. Prior to graduation from law school, John accepted a commission as an officer in the United States Navy Judge Advocate General’s Corps and served on active duty from 1993 to 1999. During his naval service, John successfully performed duties as a defense counsel, prosecutor, and general counsel. As a defense counsel stationed in San Francisco, California and Naples, Italy, John provided high quality and zealous representation of Navy and Marine Corps service members charged with serious felony offenses involving murder, sexual assault, drug trafficking, and fraud. He obtained 7 full acquittals in contested trials on behalf of his clients.

John received an Honorable Discharge from the United States Navy in 1999. From 2000 to the present, he has continued his military service in the United States Navy Reserve. Respected for his extensive trial experience, knowledge of the law, and superior writing ability, John was appointed to the bench in 2010. From 2010 to 2014, he served as a Military Trial Judge for the Navy-Marine Corps Trial Judiciary. He presided over felony court-martial cases involving sexual assault, violent crime, drug trafficking, child pornography, and fraud. In addition to his judicial experience, John served as the Commanding Officer of two Reserve units and currently holds the rank of Captain in the United States Navy Reserve. From 2000 to 2006, John served as an Assistant District Attorney for the Philadelphia District Attorney’s Office. In this capacity, he prosecuted numerous jury and bench trials in cases involving public corruption, fraud, white collar crime, and violent crime. John was the lead prosecutor in complex and lengthy grand jury investigations. He also conducted criminal investigations of police officers accused of wrongful use of deadly force, corruption, and civil rights violations.

In December 2006, John left the Philadelphia District Attorney’s Office to begin his career in the United States Department of Justice as a Trial Attorney in the Organized Crime and Gang Section. From 2006 to 2021, he investigated and prosecuted major federal RICO and Violent Crimes in Aid of Racketeering cases against national and international organized crime groups, including the Mafia and violent street gangs. From 2008 to 2019, John successfully prosecuted several members and associates of the Philadelphia La Cosa Nostra Family. In these complex and wide-ranging prosecutions of criminal organizations, he acquired substantial experience with conducting financial investigations, pursuing wiretap investigations, and charging fraud and money laundering offenses.