Boggs v. United States

How later courts describe this case

• the conditions of § 3109 for forcible entry explicate fundamental purposes of the fourth amendment, and failure to observe them may be unreasonable under the amendment
• knock and announce requirement of 18 U.S.C. § 3109 incorporated into fourth amendment
• trial court’s failure to impose a sanction sua sponte for failure to preserve discoverable material, after defense fails to request a sanction, will only be reversed upon a finding of plain error
• section 3109 requirements have been incorporated into the fourth amendment