The United States Supreme Court heard arguments this week in a case in which Missouri prosecutors asked the Court to rule that warrants are not necessary to collect blood samples from individuals suspected of driving while intoxicated. Given that alcohol can break down in the bloodstream, time is often of the essence when collecting evidence of intoxication. The Court ruled back in the 1960’s that police may only draw blood without a warrant when a suspect is involved in an injury accident. The present case, Missouri v. McNeely, No. 11-1425, asks the court to expand that ruling to cover any suspected DWI. Setting aside the arguments over constitutional rights regarding searches and seizures, this is an important case for the personal injury bar, as it may substantially affect how police collect evidence in DWI cases, and therefore what evidence may be available in a civil claim for damages.
Police arrested the defendant, Tyler McNeely, for DWI after McNeely reportedly displayed the “tell-tale signs of intoxication,” such as “bloodshot eyes” and “slurred speech.” Missouri v. McNeely, 358 S.W.3d 65, 68 (Mo. 2012). After McNeely refused to consent to a blood test or an alcohol breath test, the arresting officer, who did not have a warrant, instructed a medical professional to draw a blood sample. McNeely moved to suppress the results of the blood test at his trial, arguing that the officer violated his Fourth Amendment rights against unreasonable search or seizure. The trial court granted the motion to suppress.