California.
Blood test is optional for LEO and they are required to obtain a warrant under probable cause.
Usually the FST results in you blowing into a machine in the field, once again at the transition of custody at the jail and so forth.
This guy agreed to a blood test and there was no need for one, as no probable cause was present.
He kinda screwed himself agreeing to the blood test but, there was no case and prosecution admits they would not prevail on unanimous or preponderance of evidence, so they dropped the case.
Lol. I suggest you read California 23612 before taking your bar exam.