The incident occurred about 2:30 p.m. Monday, April 21.
"A staff member suspected the juvenile was under the influence of an unknown substance," police said in a statement. "School administrators located a small amount of marijuana in the student's backpack, which was confiscated and turned over the school resource officer."
A summons on a charge of possession of less than a half-ounce of marijuana was issued Thursday, April 24, police said. She was released on a promise to appear.
The matter was referred to juvenile court, and the suspect was not identified because of her age, police said.
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