United States v. Shannon, 851 F.3d 740

Shannon pleaded guilty in 2007 to possession of child pornography (saved >400 encrypted images); sentenced to 46 months and lifetime supervised release.
After release in 2010, probation reported multiple compliance problems (webcam possession without notice, uninstalling monitoring software, encryption, external storage, scrubbing software). Court previously found violations and imposed short incarceration; this Court vacated one prior condition on appeal.
In 2015 the district court held revocation and modification hearings after further probation reports of encryption and external storage use; it declined to revoke but proposed amended Special Condition 2.
The imposed Special Condition 2 required advance notice to probation before using devices “associated with or falling within the general category of information technology (IT) that produce, manipulate, store, communicate or disseminate information,” allowed installation of monitoring applications, random monitoring, unannounced searches, data retrieval/copying, and temporary removal of equipment for examination.
Shannon challenged Special Condition 2 as unconstitutionally vague and as imposed without adequate explanation; the district court justified it by the offense (computer-facilitated sexual exploitation of minors), Shannon’s noncompliance, and public protection concerns.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Vagueness of device-notice requirement	Condition is vague—unclear which devices trigger notice (e.g., microwave hypothetically)	Language limits scope to IT devices that handle information; reasonable person has notice and can notify if unsure	Not vague; limiting clauses provide sufficient notice and notice requirement reduces risk of unknowingly violating it
Overbreadth relative to offense risk	Condition sweeps too broadly beyond devices needed to address concerns	Device range is justified by Shannon’s computer-based conviction and evasive use of encryption/external storage	Not overbroad given offense, conduct, and risk to reoffend
Adequacy of district court’s explanation under 18 U.S.C. § 3553(a)	Court did not adequately explain why broad condition was necessary; alternatives offered by Shannon were sufficient	Court relied on offense facts, post-release evasive conduct, and public-protection/parity considerations showing meaningful consideration of §3553(a) factors	Explanation was adequate; court gave meaningful consideration and sufficient justification
Reliance on parity among offenders	Parity is not a proper factor	§3553(a)(6) requires consideration of parity among similar defendants	Parity is a valid consideration and the court permissibly referenced it

United States v. Armour, 804 F.3d 859 (7th Cir. 2015) (standard of review and vagueness framework for supervised-release conditions)
United States v. Kappes, 782 F.3d 828 (7th Cir. 2015) (requirement that district court explain consideration of §3553(a) factors for conditions)
United States v. Schave, 186 F.3d 839 (7th Cir. 1999) (vagueness standard for supervised-release conditions)
United States v. Balon, 384 F.3d 38 (2d Cir. 2004) (approved device-notification language referenced by parties)
United States v. Warren, 843 F.3d 275 (7th Cir. 2016) (limits on deprivation of liberty by release conditions)
United States v. Goodwin, 717 F.3d 511 (7th Cir. 2013) (same)
United States v. Poulin, 745 F.3d 796 (7th Cir. 2014) (reviewing adequacy of district court explanations for conditions)
United States v. Mosley, 759 F.3d 664 (7th Cir. 2014) (constitutional review standards for supervised-release revocation)
United States v. Thompson, 777 F.3d 368 (7th Cir. 2015) (conditions of release are part of sentence; §3553(a) factors apply)
Booker v. United States, 543 U.S. 220 (2005) (principles about sentencing discretion and consideration of statutory factors)