Traditional 4th Amendment Amicus

Lange v. California

Brief in Support of Petitioner
U.S. Supreme Court

In our brief, we highlight warrantless home entries committed in the pursuit of alleged misdemeanor crimes. So-called “hot pursuit” searches are a categorical exemption to our constitutional right to be free from unreasonable search and seizure under the 4th Amendment. Not only do these warrantless invasions infringe on these rights, they enable racialized policing and erode public trust in law enforcement.

Filed with the DKT Liberty Project, Law Enforcement Action Partnership, and Reason Foundation.

The Supreme Court agreed with Due Process Institute that the Constitution puts limits on when police pursuing a fleeing suspect can enter a home without a warrant. You can read the 9-0 decision here.

Due Process Institute also thanks Jessica Amunson, Caroline Cease, and Philip Sailer of Jenner & Block for their amicus support on this case.  

Torres v. Madrid, et. al.

Amicus Brief in support of Certiorari 

U.S. Supreme Court

Filed Feb. 7, 2020

TOPIC: lethal force; seizure; police misconduct

 The question in this case is if a “seizure” has occurred, in violation of the 4th Amendment, when police attempt to stop a suspect by force but do not immediately succeed in doing so. Our amicus brief argues that there are good public policy reasons for determining that such action is a “seizure” including accountability for police and  improving public trust in law enforcement and their actions. Filed with American Association for Justice, Cato Institute, Law Enforcement Action Partnership, R Street Institute, and Reason Foundation.

 Update: The Court heard oral argument in this case on Oct. 14, 2020. 

Lange v. California

Amicus Brief in support of Certiorari 

U.S. Supreme Court

Filed Dec. 11, 2020

TOPIC: “hot pursuit” warrantless searches

In this brief, we highlight warrantless home entries committed in the pursuit of alleged misdemeanor crimes.  So-called “hot pursuit” searches are a categorical exemption to our constitutional right to be free from unreasonable search and seizure under the 4th Amendment. Not only do these warrantless invasions  infringe on these rights, they enable racialized policing and erode public trust in law enforcement.  

Filed with the DKT Liberty Project, Law Enforcement Action Partnership, and Reason Foundation.

Mitchell v. Wisconsin

Brief in Support of Petitioner

U.S. Supreme Court

Is there a Fourth Amendment warrant requirement exception for a statute stating that an individual implicitly consents to a blood draw?

OUTCOME: The Court unfortunately ruled against Mitchell in an opinion you can read here.

Florida v. Kraft ​

Amicus Brief in support of Certiorari
U.S. Supreme Court

 The question in this case is if a “seizure” has occurred, in violation of the 4th Amendment, when police attempt to stop a suspect by force but do not immediately succeed in doing so. Our amicus brief argues that there are good public policy reasons for determining that such action is a “seizure” including accountability for police and  improving public trust in law enforcement and their actions.

Filed with American Association for Justice, Cato Institute, Law Enforcement Action Partnership, R Street Institute, and Reason Foundation.

 Update: The Court heard oral argument in this case on Oct. 14, 2020. 

Florida v. Kraft

Amicus Brief in support of Defendant
Florida Court of Appeals

Filed Nov. 12, 2019

TOPICS: video surveillance; minimization 

Our brief explains how the use of the police’s continuous covert video surveillance took advantage of the lack of privacy safeguards in the law and failed to utilize adequate minimization techniques to pass Constitutional muster–therefore the evidence obtained from that surveillance must be excluded.

Due Process Institute thanks Donnie Murrell for his amicus support on this matter.

OUTCOME:  The Court agreed with our position that the recordings violated the 4th Amendment and were thus unconstitutionally obtained. You can read the Aug. 19, 2020 decision here.