A Mableton woman allegedly came to Pebblebrook High School last Friday to fight a student, and had a steak knife with a 5-inch blade with her.
The alleged incident occurred between 8 and 9:30 a.m. in the school cafeteria, according to a Cobb County criminal warrant.
Allison Marie Scott, who was never a student at the school, fought with the student, which caused "a major disruption of the operation of the school," a Cobb police officer wrote in the warrant.
Scott was arrested at the school on charges that include carrying weapons within a school safety zone, disruption of public schools, fighting and criminal trespass.
She was released Monday from the Cobb County Adult Detention Center on a $5,000 bond.