TumbleWeeds
Your post on Monday at 14:01 is making way too many assumptions. Op didn't say her daughter attacked, hit, bit that little boy.
My daughter, now 4, but at the time 2, was attacked in the school playground while waiting for her sister. The child that did it was about 4, (her mother was somewhere, certainly not watching her). She took my daughter by the hair and violently shook her head. I ran over as soon as it started (dd was in the sandpit) and removed this child's hands from my daughter's hair & told her to stop (yes, even when she saw me, she didn't let go).
I did not touch that other child other than to remove her hands from my daughter, and I did so as gently as I could. I picked up my child & walked away, and went to find her mother (who by now had seen what was happening, saw me walk towards her & started to walk off, to hide - leaving her daughter in the sandpit, I will add.)
I was beyond livid. I told her what her child did & walked away.
The next day (after being told by several other parents that this isn't the first time she had attacked a younger child) I reported the incident & the little girl was banned form school grounds.
My point is, I was raging! But I didn't, at any time during the attack even THINK it was my place to hit the other little girl! Because I was able to control my emotions, and my anger & not assault a child.
This motehr should have been able to do that too, regardless of what op's daughter did/didn't do to her child.