Okay, I see where you are going with this but, is the subject that is in question for the blood draw an employee of the agency that also is the same as offending officer is? Regardless if yes or no, the officer insisting for the blood draw can not legally demand a blood draw on said subject unless the subject is under arrest, or the requesting officer or his department, for the blood draw holds a court order stating that a blood draw must be performed on said subject.
I am in total agreement with you that he legally cannot, from the facts we are seeing in the article, but he clearly thinks he can! Other than his own arrogance, I was just trying to provide another motivation that may be driving his insistence on drawing the guy's blood. Just playing devil's advocate for Payne's brain. (Too bad he isn't a high ranking officer, like a Captain, or a LT. Colonel, or a ....)