Joseph King

Attorney Profile

Top Rated Criminal Defense Attorney in Alexandria, VA

King, Campbell & Poretz, PLLC
 | 108 N. Alfred Street, Alexandria, VA 22314
Phone: 703-683-7070
Fax: 703-652-6010
Selected To Super Lawyers: 2017 - 2019
Selected To Rising Stars: 2013 - 2014
Licensed Since: 2003
Practice Areas:
  • Criminal Defense (40%),
  • Criminal Defense: DUI/DWI (30%),
  • Appellate (20%),
  • Criminal Defense: White Collar (10%)
Languages Spoken:
  • English,
  • Spanish
Attorney Profile

Attorney Joseph King of King Campbell Poretz in Alexandria, Virginia, practices white collar criminal and DWI/DUI defense law. With his many years of experience, Mr. King represents a variety of clients throughout northern Virginia and the Washington, D.C., metropolitan areas.

Mr. King holds a bachelor’s degree in physics from the University of Mary Washington and earned a master’s degree from George Mason University. He earned his law degree from the University of Michigan Law School and has been licensed to practice law since 2003.

Over the course of his years in practice, Mr. King’s involvement in various high-profile cases has led to recognition by publications, including Northern Virginia magazine and Washingtonian magazine. He has also been listed among the “Top 100 Trial Lawyers” in the state of Virginia by the National Trial Lawyers several years in a row.

Following law school, Mr. King served as a public defender at the Alexandria Office of the Public Defender. Along with gaining practical legal experience during this time, he also attended the National Criminal Defense College’s trial practice institute in Macon, Georgia.

In 2008, Mr. King opened his own law firm and during that time has worked on matters in both state and federal court. He is fluent in both English and Spanish, allowing him to represent a broader range of clients throughout his region.

Mr. King has extensive trial experience and has successfully defended clients in both misdemeanor and felony matters. In addition, he has taught at continuing legal education courses offered by Virginia CLE,, and both the Arlington County and City of Alexandria Bar Associations.

Practice Areas

Criminal Defense (40%)
Criminal Defense: DUI/DWI (30%)
Appellate (20%)
Criminal Defense: White Collar (10%)

Criminal Defense (40%): Criminal Law, Drug & Alcohol Violations, Expungement, Felony, Murder, Sex Offenses

Criminal Defense: DUI/DWI (30%): DUI/DWI

Appellate (20%)

Criminal Defense: White Collar (10%): White Collar Crime, Criminal Law - Federal

Focus Areas

Criminal Law, Drug & Alcohol Violations, Expungement, Felony, Murder, Sex Offenses, DUI/DWI, White Collar Crime, Criminal Law - Federal


Selected to Super Lawyers for 3 yearsmiddle-imageSelected to Rising Stars for 2 years

Super Lawyers: 2017 - 2019 Rising Stars: 2013 - 2014

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About Joseph King

Admitted: 2003, Virginia

Professional Webpage:


  • In 2019, Mr. King was selected to Virginia Super Lawyers., Virginia Super Lawyers, Virginia Super Lawyers, 2019
  • Mr. King was named to Northern Virginia Magazine's best lawyers for criminal defense in the magazine's December 2014 issue., Northern Virginia Magazine's Best Lawyers, Northern Virginia Magazine, December 2014 Issue, 2014
  • Mr. King was named to Washingtonian Magazine’s best lawyers for criminal defense in the magazine's December 2015 issue., Washingtonian Magazine's Best Lawyers, Washingtonian Magazine, December 2015 Issue, 2015
  • Mr. King was named to Northern Virginia Magazine's best criminal defense attorneys., Northern Virginia Magazine's best criminal defense attorneys, Northern Virginia Magazine, December 2018 Issue, 2018
  • National Trial Lawyers Association’s Top 100 Trial Lawyers in Virginia, 2009 - 2017
  • Joseph King was named to Washingtonian Magazines's best criminal defense lawyers in its December 2018 issue.  Mr. King has been selected as one of the area's top criminal defense attorneys by Washingtonian Magazine since 2011., Washingtonian Magazine Best Lawyers, Washingtonian Magazine, December 2018 Issue, 2018
  • Mr. King was named amongst Northern Virginia Magazine’s best criminal defense lawyers in its December 2016 issue., Northern Virginia Magazine Best Lawyers, Northern Virginia Magazine, December 2016 Issue, 2016
  • Virginia Super Lawyers, 2018, Virginia Super Lawyers, Virginia Super Lawyers, 2018
  • Mr. King was named to Washingtonian Magazine’s best criminal defense lawyers in the magazine's December 2017 issue., Washingtonian Magazine's Best Lawyers, Washingtonian Magazine, December 2017 issue, 2017

Bar/Professional Activity:

  • U.S. District Court for the Eastern District of Virginia
  • Chair, 4th District Committee Section II, Virginia State Bar, 2018
  • National College for DUI Defense, Member
  • Member, Fourth District Committee Section II, Virginia State Bar, 2019
  • U.S. Supreme Court
  • U.S. Court of Appeals for the Fourth Circuit

Scholarly Lectures/Writings:

  • When it comes to post-conviction appeals, understanding how to undergo the process is just as important as understanding the legal challenges you will need to overcome. Knowing how the defendant was convicted, what evidence was involved, and which motions can be most helpful to your client can make an otherwise grueling process smoother. Navigating Post-Conviction Appeals, authored by highly experienced partners from law firms across the country, addresses these issues and more. This book will give you an in-depth look at both challenging convictions on appeal, as well as what the odds are for defendants to win, and possibilities for post-conviction relief. Using techniques from their own practices and firms, these authors explain direct appeals, section 2255 motions, rule 33 motion for a trial, and when to petition for writ of error coram nobis. They offer best practices for assessing the effectiveness of counsel, discuss whether or not you can appeal on new evidence, and what your client's options are if the appeal is denied. They also cover highly specific topics that range from determining the appropriate venue based on a defendant's initial sentencing, to explaining how motions for compassionate release and presidential pardons work. The appeals process is often difficult, but with this book you'll be able to successfully navigate many of its obstacles. Inside the Minds provides readers with proven business and legal intelligence from leading C-Level executives and lawyers. Each chapter offers thought leadership and expert analysis on an industry, profession, or topic, providing a future-oriented perspective and proven strategies for success. Each author has been selected based on their experience and C-Level standing within the business and legal communities. Chapters Include:1. James H. Feldman Jr., Sole Practitioner, Law Office of James H. Feldman Jr.-"Federal Criminal Appeals and Post-Conviction Relief: Getting the Most Out of Limited Opportunities for Relief"2. David Oscar Markus, Partner, Markus/Moss PLLC-"Battling Goliath: Trying to Win in the Court of Appeals"3. Randall S. Levine, Partner, Levine & Levine-"Challenging Convictions on Appeal: A Difficult but not Impossible Battle"4. Richard B. Lind, Owner, Law Office of Richard B. Lind-"Understanding the Appeals Process: Preserving the Record, Weighing the Grounds, and Preparing the Client for the Process"5. Joseph King, Partner, King Campbell Poretz & Thomas PLLC-"Developing an Appeals Strategy for Criminal Convictions and Assessing Effective Assistance of Counsel" Appendices Include:Appendix A: Sample Petition for AppealAppendix B: Sample Petition for Writ of Habeas Corpus, Author, Developing an Appeals Strategy for Criminal Convictions and Assessing Effective Assistance of Counsel, in Navigating Post-Conviction Appeals, pp. 61-99, Aspatore Books, 2015, Aspatore Books, Legal, 2015
  • Mr. King is the co-author, along with Marina Medvin, of Chapters 1 and 7 on Substantive Law and Technical Defenses in Intoxication Cases in Defense of Serious Traffic Cases in Virginia (Virginia CLE Publications, 6th ed. 2018). The defense of serious traffic offenses is an extremely complex area of law in Virginia where constitutional protections for an individual conflict almost inevitably with the right of the general public to be protected from unsafe drivers. Because of the reliance on scientific evidence to prove different aspects of these cases, attorneys working in this area must be well-versed not just in the law but in the specialized body of knowledge that supports these methods of proof. These cases involve criminal sanctions and the potential for loss of license that can significantly affect a client’s life. Whether the case depends on field sobriety testing or chemical analysis of the arrested driver’s breath or blood sample, or when speed-measuring devices are used, Defense of Serious Traffic Cases in Virginia is a resource for both the new and the seasoned practitioner in preparing for cross-examination of both police officers and the Commonwealth’s scientific experts. There are many issues that can arise in the trial of a serious traffic offense. These are just a few examples of topics that have been updated in the 2018 edition: New statutory changes that create separate punishments schemes depending on whether refusal was for a breath or blood-test The possibility of allowing offenders to substitute community service for fines and costs to ensure that their driving privileges are not  suspended New provisions that control the restricted license of a driver who is required to use ignition interlock after DUI conviction Significant changes to the separate statutes that control DUI and refusal charges for commercial licensees, Co-Author, Defense of Serious Traffic Cases in Virginia (Virginia CLE Publications, 6th ed. 2018)., Virginia CLE Publications, Legal, 2018
  • COURSE DESCRIPTION Since the United States Supreme Court’s decision in Padilla v. Kentucky, criminal defense lawyers have an obligation to properly advise their clients regarding the immigration consequences of the charges pending against them and of any charges to which they may plead guilty. While the criminal defense lawyer cannot be expected to master all relevant areas of immigration law, understanding the basics is not only possible but indispensable. This course, presented by criminal law attorneys Emily Beckman and Joseph King, will provide an introduction to immigration consequences of criminal convictions, with a special focus on common pitfalls in Virginia misdemeanor practice and how they may be avoided.    Learning Objectives:Understand different immigration statuses and how the client’s immigration status affects the consequences of criminal convictions for that client Differentiate between removability, inadmissibility, and forms of relief from deportation Identify aggravated felonies and crimes involving moral turpitude Negotiate plea agreements that protect clients from immigration consequences, including deferred disposition agreements that comply with Crespo v. Holder, 631 F.3d 130 (4th Cir. 2011), Faculty, Introduction to Immigration Consequences of Criminal Convictions in Virginia,, Legal, 2017
  • Firearm, toolmark, and gunshot residue evidence plays a significant role in many homicide and serious felony cases. It can be the key evidence tying a defendant to a crime or have significant exculpatory value in supporting a self-defense or mistaken-identity claim. This course is designed to provide attorneys practical information on how firearm, ammunition, and gunshot residue evidence is forensically analyzed and identified and its use and value as evidence during trial. To illustrate the use of this evidence in actual trials, sample certificates of analysis, sample direct and cross-examination of experts, and other documentary materials from actual cases will be provided to participants. Jay Mason, one of the presenters, is recently retired from the Virginia Department of Forensic Science and has over 30 years of experience as a firearm expert. He is a fantastic well of knowledge about firearm and ammunition forensic analysis and has testified in numerous serious cases involving firearms, including capital murder. Criminal defense attorneys Joseph King and Emily Beckman are both experienced trying homicide and serious felony cases involving firearms and will provide case examples of the use of this evidence at trial and how to challenge it., Faculty, Firearm Forensics and Defense Issues in Criminal Cases, Virginia CLE, Legal, 2018
  • As discussed in the class, taught by Joe King and Jeff Zimmerman, sentencing and mitigation is a critical part of federal criminal practice, as more than 95% of federal felony cases resolve with guilty pleas. The course uses Paul Manafort’s sentencings as a vehicle to understanding the sentencing guidelines, discussing variances, and preparing sentencing memoranda—often the most important pleading submitted in a federal case. The Importance of a Sentencing Memo in Federal Criminal Cases The sentencing memo not only presents legal argument regarding application of the advisory United States Sentencing Guidelines, but often will be the primary method for the presentation of mitigation. This is frequently undervalued and makes a significant difference –– as it did for Manafort––in the sentence a defendant receives. Mitigating factors may explain, in whole or in part, the conduct and should be considered in fashioning a fair resolution and/or sentence. Influence of Mitigating Factors in Federal Sentencing Mitigating factors can include lack of prior record, work and social history, family, contributions to the community and public service, military service (including PTSD and TBI), substance abuse and/or mental health issues, childhood trauma, immaturity and/or peer pressure, financial pressure, or even heat of passion. Mitigating factors can also be presented to prosecutors prior to and during plea negotiations and probation officers that prepare pre-sentence reports (PSRs) that are filed with the court., Faculty, Essentials of Federal Sentencing, with Lessons from the Paul Manafort Case, Virginia CLE, CLE, 2019
  • Joseph King and his co-authors consider the impact of the Melenedez-Diaz and Briscoe U.S. Supreme court cases in light of the rights that they protect versus the purported cost to the system. On January 11, 2010, Mr. King appeared in the U.S. Supreme Court as accompanying counsel to Professor Richard Friedman of the University of Michigan Law School, a Confrontation Clause scholar, in Briscoe v. Virginia, 559 U.S. (2010). The question presented in Briscoe was whether the government, if it “allows a prosecutor to introduce a certificate of a forensic laboratory analysis” without the analyst’s live testimony, may “avoid violating the Confrontation Clause of the Sixth Amendment by providing that the accused has a right to call the analyst as his own witness.” The U.S. Supreme Court granted certiorari in Briscoe on June 29, 2009, four days after deciding the major Confrontation Clause case of Melendez-Diaz v. Massachusetts, 129 S. Ct. 2527 (June 25, 2009) (View PDF), which held laboratory certificates of analysis are testimonial hearsay and the Confrontation Clause of the U.S. Constitution requires the government to make analysts who prepare such certificates available to the defense for cross-examination. On August 19, 2009, the Virginia General Assembly met in special session to amend the statutes challenged in Briscoe and to bring those laws into compliance with Melendez-Diaz v. Massachusetts. On August 22, Governor Kaine signed new legislation requiring the prosecution, rather than the defense, to present the live testimony of lab technicians in the prosecution’s case-in-chief if so demanded by the defendant. It would appear the Virginia General Assembly made the correct decision to amend the laws challenged in Briscoe. On January 25, 2010, the U.S. Supreme Court vacated the decision against petitioners Briscoe and Cypress and remanded the case in light of Melendez Diaz v. Massachusetts. In 2008, Mr. King argued Briscoe v. Commonwealth before the Virginia Supreme Court (decided in Magruder v. Virginia, 657 S.E.2d 113, 275 Va. 283 (Va. 2008)), which 4-3 opinion in favor of the Commonwealth precipitated Briscoe’s appeal to the U.S. Supreme Court. On September 16, 2010, the Virginia Supreme Court found the laws challenged in Briscoe v. Virginia to be unconstitutional in its opinion Cypress/Briscoe v. Commonwealth, 280 Va. 305 (2010), however, Briscoe’s convictions were upheld on harmless error grounds.  The opinion can be found at: , Co-author, Melendez-Diaz and Briscoe: Return of Constitutional Guarantees Worth the Cost to the System, New England Journal on Criminal and Civil Confinement, Vol. 36, No. 2, Spring 2010, Legal, 2010
  • Joseph King, who represented Appellant Briscoe in the Virginia Supreme Court and United States Supreme Court, provides an overview of the Melendez-Diaz and Briscoe cases and their impact., Author, Melendez-Diaz v. MA and Briscoe v. VA, Alexandria Bar Association Oyez, Vol. 28, No. 3, June 2010, Alexandria Bar Association Oyez, Vol. 28, No. 3, June 2010, Legal, 2010
  • Teaches, DUI defense, Arlington Bar Association
  • Teaches, DUI and Traffic Defense, Alexandria Bar Association, 2011-2014
  • Teaches, Criminal Defense, Alexandria Bar Association,  2012-2013
  • Teaches, Appellate And Post-Conviction Advocacy, Alexandria Bar Association, 2016


Educational Background:

  • Mary Washington College, Bachelor’s Degree in Physics, 1992, 1992
  • JD, University of Michigan Law School, Cum Laude, 2003
  • George Mason University, Master's Degree in History, 1996, 1996
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Office Location for Joseph King

108 N. Alfred Street
Alexandria, VA 22314

Phone: 703-683-7070

Fax: 703-652-6010

Joseph King:

Last Updated: 9/17/2019

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