Summary
The Ninth Circuit affirmed Duane Lee Johnsen’s convictions for receiving, accessing, and possessing child pornography. The court held that hash matches, descriptive filenames, and other corroborating evidence supported probable cause for the search warrant, and that law enforcement’s access to publicly shared eMule files violated neither the Fourth Amendment nor the Wiretap Act. The court also rejected Johnsen’s claims concerning counsel during forensic analysis, selective prosecution, and insufficient evidence.
Topics
Practice areas
Questions Presented
- Whether the search warrant was supported by probable cause when agents had not downloaded and visually viewed the suspect files but had identified hash matches, incriminating filenames, and Johnsen's relevant criminal history.
- Whether law enforcement's warrantless review of files Johnsen publicly offered for download on eMule violated the Fourth Amendment.
- Whether the pre-warrant access to Johnsen's stored eMule files violated the Wiretap Act.
- Whether forensic analysis of Johnsen's devices without counsel present violated his Sixth Amendment right to counsel.
- Whether Johnsen established a selective-prosecution claim based on his prior convictions and the alleged nonprosecution of other eMule users.
- Whether the district court erred in denying Johnsen's motion for judgment of acquittal based on insufficient evidence.
Holdings
- A hash match between files associated with a suspect and known child pornography can support a reasonable inference that child pornography is present on the suspect's devices even when agents have not downloaded and visually viewed the suspect files. Here, the hash evidence, incriminating filenames, and Johnsen's relevant criminal history established probable cause under the totality of the circumstances.
- Law enforcement's warrantless access to files Johnsen made publicly available for download on eMule did not constitute a Fourth Amendment search or violate his reasonable expectation of privacy.
- The pre-warrant review of Johnsen's stored eMule files did not violate the Wiretap Act because the files were fully downloaded and stored on his computer rather than acquired during transmission, and Johnsen lacked standing absent a violation of his Fourth Amendment rights.
- Forensic analysis of seized electronic devices is not a critical stage of the prosecution, so the defendant has no Sixth Amendment right to have counsel present during the analysis.
- Johnsen failed to establish selective prosecution because he provided no evidence that similarly situated individuals were not prosecuted and no evidence of an impermissible prosecutorial motive.
- The court declined to review the denial of the motion for judgment of acquittal because Johnsen did not identify a deficient element, provide specific supporting arguments, or cite the record.
Key quotations
“A hash match between a suspect’s files and known child pornography amply supports the reasonable inference that such material is present on the suspect’s devices, even if agents have not downloaded and viewed the suspect file.” (9)
“Individuals do not have a reasonable expectation of privacy in electronic files they offer for public download, and accessing files made available on a filesharing platform does not constitute a search.” (12)
“Because the forensic analysis of Johnsen’s devices was not a critical stage of the prosecution, Johnsen had no right to an attorney’s presence during it.” (16)
“To establish a prima facie case of selective prosecution, a defendant must show both (1) that others similarly situated have not been prosecuted, and (2) that the prosecution is based on an impermissible motive . . . .” (17)
Factual background
Law enforcement identified an eMule profile registered to Johnsen that publicly offered at least 19 suspected child-pornography files. Although agents could not download the suspect files, nine files had hash values matching known child-pornography files, and the filenames strongly indicated sexual content involving minors; Johnsen was also a registered sex offender with prior convictions involving minors. A warrant search resulted in the seizure of 59 electronic devices, whose forensic analysis revealed tens of thousands of child-pornography files, including more than 140,000 images and over 900 videos.
Procedural history
Law enforcement obtained a warrant to search Johnsen's property after identifying files publicly offered through his eMule account whose hash values matched known child pornography, along with incriminating filenames and information about his prior convictions. Officers seized and forensically analyzed 59 electronic devices, and Johnsen was indicted on possession, access, and receipt charges under 18 U.S.C. §§ 2252 and 2252A. The district court denied his pretrial motions to suppress and dismiss, denied his Rule 29 motion at trial, and the jury convicted him on all counts. The Ninth Circuit affirmed.