The Ninth Circuit (over a dissent) holds that district courts should more permissively allow discovery when a defendant claims that the government engaged in unconstitutional selective enforcement by subjecting him to a reverse stash house sting (a longstanding scheme in which confidential informants lure suspects into “robbing” a drug stash house that does not exist). Come for the majority’s discussion of burdens of proof, stay for the concurring opinion’s blistering criticism of the entire “tawdry and disreputable tactic.”