tort cannot provide the source of law under the FTCA.” Williams v. United States, 242 F.3d 169, 175 (4th Cir.2001) (citing F.D.I.C. v. Meyer, 510 U.S. 471, 478, 114 S.Ct. 996, 127 L.Ed.2d 308 (1994) (“Indeed, we have consistently held that § 1346(b)’s reference to the ‘law of the place’ means law of the State — the source of substantive liability under the FTCA.”)). In other words, as made explicit by its text, the FTCA’s limited waiver of sovereign immunity extends no farther than the limits of private tort liability. 28 U.S.C. § 2674. Because the basis for such liability must be the law of the state in which the act or omission occurred, a claim based exclusively on federal law may not be invoked under the Act. See Washington v. Drug Enforcement Admin., 183 F.3d 868 (8th Cir.1999) (<HOLDING>). Because there is no waiver of immunity for
holding the same with respect to violations of the fifth amendment recognizing private damage action for fourth amendment violations by federal officers holding that violations of  524 cannot be remedied pursuant to  105 holding fourth fifth and fourteenth amendment violations stemming from dea search cannot be remedied through ftca because state law cannot create liability for violation of federal constitutional rights holding that the government may not introduce evidence obtained through violations of the fourth amendment