Why are they trying to make this story worse than it is? I mean, why bring up that they didn't use plastic handcuffs and then try and make it seem even worse than it was by acting as if even "hardened criminals" are given some sort of luxury by being put in plastic cuffs. What a bullshit thing to say.
A kid did something that they shouldn't have done, the school overreacted and here we are. If the school wanted to press charges against the student, then the police officers HAVE TO arrest her. It's not like the police officers at the scene could've been like, "Naw, we're not going to let you press charges". They were doing their job. It's not like they threw her up against the car, roughed her up and went out of their way to embarass her. They cuffed her, put her in the squad car and took her to the station, just as they would with anybody else.
It was THE SCHOOL that overreacted here; not the police.