United States v. Shields

CourtCourt of Appeals for the Armed Forces
DecidedApril 28, 2023
Docket22-0279/MC
StatusPublished

This text of United States v. Shields (United States v. Shields) is published on Counsel Stack Legal Research, covering Court of Appeals for the Armed Forces primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States v. Shields, (Ark. 2023).

Opinion

This opinion is subject to revision before publication.

UNITED STATES COURT OF APPEALS FOR THE ARMED FORCES _______________

UNITED STATES Appellee

v.

Ethan R. SHIELDS, Staff Sergeant United States Marine Corps, Appellant

No. 22-0279 Crim. App. No. 202100061

Argued February 21, 2023—Decided April 28, 2023

Military Judges: Derek D. Butler (arraignment) and Eric A. Catto (motions and trial)

For Appellant: Lieutenant Aiden J. Stark, JAGC, USN (argued).

For Appellee: Captain Tyler W. Blair, USMC (ar- gued); Colonel Joseph M. Jennings, USMC, Lieuten- ant Gregory A. Rustico, JAGC, USN, and Brian K. Keller, Esq. (on brief); Lieutenant James P. Wu Zhu, JAGC, USN.

Chief Judge OHLSON delivered the opinion of the Court, in which Judge SPARKS, Judge MAGGS, Judge HARDY, and Judge JOHNSON joined. _______________ United States v. Shields, No. 22-0279/MC Opinion of the Court

Chief Judge OHLSON delivered the opinion of the Court. This Court again confronts the issue of what constitutes a reasonable search of a servicemember’s phone. And as al- ways, the resolution of this issue depends on the specific facts of the case. In the instant case, Appellant’s phone was lawfully seized to search for location data generated on a specified date. After a digital forensic examiner extracted images from Appellant’s phone, he sorted them by file size rather than first filtering them by the date specified in the search authorization. Upon doing so, the forensic examiner saw a thumbnail image of what he suspected was child pornogra- phy. After obtaining an expanded search authorization, the examiner indeed found evidence of child pornography, as well as indecent recordings, and Appellant was eventually charged and convicted of offenses related to those images. At trial, Appellant filed a motion to suppress this evi- dence obtained from his phone on the grounds that the search violated his Fourth Amendment rights. The mili- tary judge denied the motion. We granted review of the fol- lowing issue: Where the search authorization only sought ma- terials from one date, but the government looked at images irrespective of that date, did the mili- tary judge abuse his discretion by finding the search did not violate the Fourth Amendment? United States v. Shields, 83 M.J. 95 (C.A.A.F. 2022) (order granting review). For the reasons set forth below, we hold that the search did not infringe upon Appellant’s constitutional rights. Ac- cordingly, we hold that the military judge did not abuse his discretion in denying the defense motion to suppress. We therefore affirm the judgment of the United States Navy- Marine Corps Court of Criminal Appeals (NMCCA).

2 United States v. Shields, No. 22-0279/MC Opinion of the Court

I. Background

On December 23, 2018, nine Marine recruits reported to their chain of command that the driver of a car exposed his genitals to them while they were walking on base at the Marine Corps Recruit Depot, Parris Island. A preliminary investigation pointed to Appellant as the culprit. To con- firm Appellant’s whereabouts on December 23, law enforce- ment obtained a search authorization that permitted them to search for “all location data stored on [Appellant’s] phone or within any application within the phone for 23 Dec [20]18.” By searching Appellant’s phone for location data, law enforcement hoped to pinpoint Appellant at the scene of the exposure. For reasons unclear in the record, this search authorization was not issued until May 2, 2019. Appellant surrendered his iPhone to military law en- forcement that same day. It was then sent to the Defense Cyber Crime Center (DC3) which extracted all data from the iPhone for digital forensic analysis. The designated fo- rensic examiner was provided with a copy of the search au- thorization which he read before beginning his search. He then used software known as Cellebrite Physical Analyzer (Cellebrite) to organize the extracted data into a readable format so he could begin his search. He initially searched through the “parsed data,” which is sorted into categories, such as “device locations,” “internet history,” “texts,” and “images.” The examiner next searched within the “device locations” category but was unable to find any relevant lo- cation data from December 23, 2018. Since the most obvi- ous place to search was unfruitful, the examiner deter- mined he needed to broaden his search. Based on his training and experience, the examiner knew that image files often contain embedded unparsed Global Positioning System (GPS) location information. With this in mind, he proceeded to open the “images” cate- gory. This placed the over 200,000 images extracted from Appellant’s phone into “row after row after row of little thumbnail views” of individual pictures. With a single click of his computer mouse, the examiner reorganized these

3 United States v. Shields, No. 22-0279/MC Opinion of the Court

images into a “table view.” This table view arranged each thumbnail image in its own row with corresponding col- umns which contained pertinent data such as filename, file size, and date the file was created. Once in table view, the examiner was able to further sort and filter these images. The examiner then sorted the images by file size in de- scending order. This step bumped previously unseen im- ages to within his view. In other words, the images taking up the most digital storage percolated to the top of the ex- aminer’s screen. The examiner testified that his intent af- ter sorting the images from largest to smallest was to begin filtering by date. However, before he could apply a date fil- ter to isolate images from December 23, he immediately no- ticed a thumbnail image of what he believed to be a depic- tion of child pornography. The examiner testified that this image was visible within his screen without scrolling. The examiner did not click on, open, or manipulate the sus- pected contraband image. Instead, he stopped his search and consulted with his supervisor. Together, they deter- mined not to continue with the search until after obtaining a new search authorization. The examiner resumed his search once he received an additional search authorization allowing him to search for suspected child pornography. This broadened search uncovered evidence of additional misconduct, including child pornography and indecent re- cordings, for which Appellant was eventually charged. Before trial, Appellant moved to suppress evidence ob- tained from the expanded search. Appellant claimed the original search violated his Fourth Amendment rights be- cause the examiner sorted by file size before filtering by date. Essentially, Appellant argued the examiner exceeded the scope of the search authorization. To support this claim, the defense hired a digital forensic expert. An Article 39(a), Uniform Code of Military Justice (UCMJ), 1 session was held where the parties presented additional evidence and offered oral argument. The defense expert testified that the examiner should not have initiated his search by

1 10 U.S.C. § 839(a) (2018).

4 United States v. Shields, No. 22-0279/MC Opinion of the Court

sorting by file size, and that if he had not done so the con- traband image would not have come into the examiner’s view. Fundamentally, Appellant argued that there was no proper reason for the examiner to first sort by file size and by doing so, the examiner violated Appellant’s Fourth Amendment rights. After considering the defense motion, the Government’s response, and the evidence and arguments presented by counsel, the military judge denied the motion to suppress.

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