Officers arrested 38-year-old Aquila Glaesel and her 14-year-old daughter at Merced High School on Tuesday. They say Glaesel took her daughter to the school to confront a 16-year-old girl.
Investigators believe the two teens were involved in an on-going verbal dispute. But it turned violent Tuesday - when police say Glaesel's daughter punched the other girl, giving her a black eye.
Glaesel was booked into jail on disturbing the peace charges. Police took her daughter to Juvenile Hall.