What will probably happen is that cps will interview the little girl and then will interview the boy involved. Depending on the boy's age, various things can happen. Most likely cps will expect counseling to take place for the boy. If he is older, charges may be brought up particularly if the family is not cooperative about getting the counseling done. The teacher's only involvement will be with the reporting since she did not witness what happened. CPS will focus on the two children involved.