Indeed.

My wife is an ER charge nurse, and she often complains about the behavior of cops in the emergency room. They have someone on the edge of death and the cops often are in the room yelling at the nurses to get them to do a blood draw and drug screening.

Cops need a warrant to get that, and even if they had a warrant in hand, performing the blood draw wouldn't even be considered until the patient is stabilized. But they never have a warrant, and the pressure the cops apply is withering. Most people -- even doctors and nurses -- would eventually cave.

Fortunately, as the charge nurse, she's the one who has to approve such a thing, so the cops have to deal with her. And she's hard as a rock. They aren't going to make her wilt.