I assume your question relates to the new U.S. Supreme Court case, McNeely v.Missouri, which held that a blood draw may not be taken without a warrant simply because the evidence (alcohol) may be dissipating. In California you agree to provide a sample of your blood or breath when you get a drivers license, if you choose to not provide a sample of your blood or breath you may be prosecuted for a "refusal." Prior to McNeely law enforcement could simply hold you down and do a "forced" blood draw, McNeely seems to support the idea that before a "forced" blood can occur, law enforcement must make an effort to get a warrant or demonstrate why a warrant was not available in a timely fashion. It seems quite likely that law enforcement will simply stop taking blood and allow prosecutors to proceed with refusals based solely on the law of implied consent and the evidence supporting the allegation that the driver was impaired. If the officer thought you were under the influence, under implied consent he could ask you to provide a blood sample, once you refused he could either try to get a warrant or simply make the refusal box, a refusal carries more significant suspension and jail if convicted regardless of whether there is a chemical test.
Answered on Apr 23rd, 2013 at 8:48 PM