Whether a Fourth Amendment violation occurs when the government extracts a blood sample by compelled intrusion into a person's body and then chemically analyzes that blood sample for alcohol based upon a warrant authorizing only the blood extraction, but not the chemical analysis

Question Presented The United States Supreme Court has held that the compelled extraction of blood from a person’s body is a Fourth Amendment search. The Court has also held that the government’s chemical analysis of blood extracted from a person’s body is a Fourth Amendment search. This case presents the question of whether a Fourth Amendment violation occurs when the government extracts a blood sample by compelled intrusion into a person’s body and then chemically analyzes that blood sample for alcohol based upon a warrant authorizing only the extraction of blood, but that does not authorize the chemical analysis of the seized blood. i Il. List of Proceedings State v. Crider, No. B18-073, 198 Judicial District Court, Kerr County, Texas. Judgment entered September 12, 2018. Crider v. State, No. 04-18-00856-CR, Fourth Court of Appeals, San Antonio, Texas. Judgment entered September 4, 2019. (Crider v. State, No. PD-1070-19, Texas Court of Criminal Appeals. Judgment entered September 16, 2020. ii III.