WTF?

A woman is tended to by other protesters after she was tasered during demostrations outside City Hall.

Okay, maybe it's just me, but....why is this woman not in custody? She apparently did something worthy of being tased (bro), but is being tended to by random protesters? It's unfathomable to think the NOPD would allow civilians to aid an arrestee. What is the SOP for use of a taser? I find it hard to imagine a circumstance where the police can use (potentially) deadly force, and just walk away without making an arrest. Huh?