Fourth Amendment Center

NACDL's Fourth Amendment Center offers direct assistance to defense lawyers handling cases involving new surveillance tools, technologies and tactics that infringe on the constitutional rights of people in America. The Center is available to help members of the defense bar in bringing new Fourth Amendment challenges.

           

 To request assistance or additional information, contact 4AC@nacdl.org.

 

Register now for Artifical Justice: AI, Tech, and Criminal Defense hosted by NACDL’s Fourth Amendment Center and Georgetown Law’s Center on Privacy and Technology. We'll be discussing the technology law enforcement use, how to challenge that evidence, and what’s on the horizon. Equip yourself with the knowledge you need to effectively defend clients in an increasingly digital world.

This program is free to attendees and will offer CLE credit.

Register

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The NACDL Foundation for Criminal Justice preserves and promotes the core values of the National Association of Criminal Defense Lawyers and the American criminal justice system.

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About the Center Training and Webinars Reports and Publications Amicus Briefs Litigation Support

 

Launched in April 2018, the Fourth Amendment Center seeks to build a robust legal infrastructure to challenge outdated legal doctrines that undermine privacy rights in the digital age. To this end, the Center is available to provide litigation assistance in cases raising new Fourth Amendment concerns, including:

   

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Defense lawyers with cases involving any of these issues are encouraged to contact the Center. The Center is available to provide consultations and litigation resources as well as direct assistance in support of a defendant’s Fourth Amendment claims. Specifically, the Center may assist in motion practice, preparation for suppression hearings, appellate strategy, brief writing, and oral argument. The Center also provides group trainings for defense lawyers around the country and upon request.

 

Learn more about the Center's history and staff.

 


 

Featured

 
Watch Now: Defense Strategies for Getting (and Challenging) Social Media Evidence

In the digital age, law enforcement is savvy enough to pull information about your client’s online presence and use it against them. Getting this data and challenging it are skills every modern defense attorney needs. This webinar covers how social media evidence can and cannot be accessed, how it’s authenticated, and viable legal arguments to use and challenge it in your own cases. The Center hosted Hanni Fakhoury, Partner at Moeel Lah Fakhoury and an expert on electronic surveillance and digital privacy, for this program.  

 

Watch Now: Tiny Constables: Automatic License Plate Readers and the Fourth Amendment

Automatic License Plate Reader (ALPR) systems are getting more sophisticated and more accessible to police. ALPRs can gather information about people and their movements, but police also use them creatively: creating associations between vehicles and identifying “suspicious” travel patterns. 

This webinar from NACDL’s Fourth Amendment Center Staff explores ALPR systems, the cases affecting law on open roads, and how to challenge this evidence in your own case.

 
Read and Watch Now: Testimony on Facial Recognition Technology before Civil Rights Commisson

Clare Garvie, Fourth Amendment Center Training and Resource Counsel, testified before the U.S. Commission on Human Rights' during their hearing on Civil Rights Implications of the Federal Use of Facial Recognition Technology. Her testimony highlights how the use of facial recognition technology in the criminal legal system intersects with the Commission’s mandate to inform civil rights policy, enhance enforcement of federal civil rights laws, and investigate discrimination in the administration of justice. 

 

Read Now: 21st Century Policing Tools Risk Entrenching Historical Biases

Training & Resource Counsel Clare Garvie's and Education & Resource Associate Julian Wallace's essay “21st Century Policing Tools Risk Entrenching Historical Biases,” in the National Urban League’s annual report, “The State of Black America 2024.”

 


 

Reports

   

Find the rest of our reports and primers here.

 


 

CLE Training and Webinar Library

 

Using Police Technologies to Uncover Law Enforcement Misconduct in Criminal Cases

Since 2017, the Baltimore Public Defender’s Office has called over 2,000 convictions into question related to police misconduct. In one instance, a Baltimore Police Department body-worn camera appeared to show an officer planting drugs at the scene of an arrest. As law enforcement agencies are increasingly using surveillance tools and forensic technologies to identify and arrest suspects in criminal investigations, defense attorneys are faced with the challenge of both defending their clients and holding police accountable for misconduct and abuse. How can criminal defense attorneys turn police technologies on police departments in criminal proceedings? 

This webinar from August 11, 2020 featured Debbie Levi, Director of Special Litigation with the Baltimore City Public Defender, and Ivan Bates, Managing Partner of Bates & Garcia, P.C.

Find the rest of the Center's webinars here.

 

Combatting the Surveillance State in Criminal Proceedings

This two-day CLE conference discussed the government's use of technologically advanced investigative techniques in criminal cases, and the issues raised by those techniques under the Fourth Amendment and other federal law.  

This CLE was co-sponsored by NACDL and the Berkeley Center for Law and Technology (BCLT), and held at International House, the University of California - Berkeley from November 29 to 30, 2018. 

All of the videos from the conference can be viewed here.

 


 

Amicus Briefs

 

NACDL provides amicus assistance on the federal and state level in those cases that present issues of importance to criminal defendants, criminal defense lawyers, and the criminal justice system as a whole. A selection of NACDL's amicus briefs that address the Fourth Amendment in the digital age are offered below. 

 

           State v. Jackson                             Jewel v. National Security Agency
       
        United States v. Henderson                  United States v. Ackerman        
          Dahda v. United States                           Byrd v. United States

 Read the rest of our amicus work here.

 


 

Litigation Support

 

Need help with a case?

 

The Center is available to provide consultations and litigation resources as well as direct assistance in support of a defendant’s Fourth Amendment claims. Specifically, the Center may assist in motion practice, preparation for suppression hearings, appellate strategy, brief writing, and oral argument. The Center also provides group trainings for defense lawyers around the country and upon request.

To request assistance or additional information, contact 4AC@nacdl.org.

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