Utah nurse’s arrest raises questions on evidence collection

The videotaped arrest of a Utah nurse who refused to allow blood to be drawn from an unconscious patient has raised questions about how far officers can go to collect evidence and has led to policy changes within the Salt Lake City Police Department.
Here are some of the legal issues involved:
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WHAT HAPPENED?
Police body-camera video released Thursday shows Salt Lake City Detective Jeff Payne handcuffing nurse Alex Wubbels on July 26 after she refused to allow blood to be drawn from an uncons