United States v. Lawson, 677 F.3d 629

Lawson and codefendants were convicted by a jury of violating the Animal Welfare Act animal fighting statute and conspiring to violate it, based on participation in Swansea cockfighting derbies in July 2008 and April 2009.
Undercover investigations by South Carolina authorities captured cockfights with birds equipped with gaffs and entry-fee purses at issue.
Several defendants were also convicted of participating in, and/or conspiring to participate in, an illegal gambling business under 18 U.S.C. § 1955, linked to the derbies.
The district court consolidated multiple indictments for joint trial, despite objections.
During deliberations, a juror researched staff-defining terms including “sponsor” on Wikipedia, prompting a Remmer-type inquiry into juror misconduct.
The court ultimately vacated the animal fighting convictions due to the juror misconduct and remanded for a new trial on those counts; gambling convictions were affirmed.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Constitutional basis for animal fighting statute under Commerce Clause	Lawson argues Congress lacks authority	Gibert/Government argue activity substantially affects interstate commerce	Constitutional under Commerce Clause
Equal protection of different elements based on state legality	Lawson contends rational basis is violated	Lawson argues disparate treatment is unconstitutional	Rational basis review; permissible federalism-based distinction
District court joinder of defendants was improper	Lawson objected to joint trial	Joinder was permissible because offenses/defendants could be joined	No abuse of discretion; joint trial upheld
Was juror's unauthorized online definition research prejudicial	Lawson entitled to presumption of prejudice under Remmer	Remmer presumption may be limited or not apply after Olano/Phillips	Remmer rebuttable presumption applied; government failed to rebut; animal fighting convictions vacated and new trial granted

United States v. Gibert, 677 F.3d 613 (4th Cir. 2012) (companion holding Commerce Clause authority for animal fighting statute)
United States v. Cheek, 94 F.3d 136 (4th Cir. 1996) (de novo review of legal questions; Mayhue factors guidance)
Remmer v. United States, 347 U.S. 227 (1954) (presumption of prejudice from extraneous juror contact; heavy burden on government to rebut)
Stockton v. Virginia, 852 F.2d 740 (4th Cir. 1988) (Remmer presumption in juror-extrinsic influence cases persists)
United States v. Basham, 561 F.3d 302 (4th Cir. 2009) (Remmer presumption applied to juror’s external influence; new trial normally warranted)