EPIC has filed an amicus brief with the U.S. Court of Appeals for the Sixth Circuit in United States v. Miller, arguing that the Government must prove the reliability of Google email screening technique. The lower court held that law enforcement could search any images that Google's algorithm had flagged as apparent child pornography. EPIC explained that a search is unreasonable when the government cannot establish the reliability of the technique. EPIC also warned that the government could use this technique "to determine if files contain religious viewpoints, political opinions, or banned books." EPIC has promoted algorithmic transparency for many years. EPIC routinely submits amicus briefs on the application of the Fourth Amendment to investigative techniques. EPIC previously urged the government to prove the reliability of investigative techniques in Florida v. Harris.