Police arrested a Marlborough High School student Thursday after he allegedly traded adderall for marijuana.

“A student was found in possession of marijuana which is a civil offence," said Detective Scott DeCiero of the Community Services Bureau of the Marlborough Police Department.

When school officials spoke with Zachary Culp Risotti, 17, of 136 Old Charter Road he reportedly them that there was more to the story.

"When they spoke with the student, he stated he distributed adderall to an unknown student for the marijuana,” said Det. DeCiero.

Risotti has been charged with class B drug possession to distribute and a civil charge of possessing class D marijuana.