Division One of the Washington Court of Appeals concluded that a warrant to seize blood evidence in a felony is ineffective to allow testing when the warrant itself only specifies seizure. Before a lawfully procured blood sample may be tested, a warrant authorizing the testing must also be issued. State v. Martines, __Wn. App.__(2014).
The text of the full case is here: State v. Martines
Blood warrants are currently being revised to address the decision.