A dropped piece of paper with a bomb threat written on it led to the arrest of a juvenile at Newton High School on Feb. 21.
Lt. Mike Yoder of the Newton Police Department said the school's student resource officer looked into the "credible" threat and was able to find the individual they believe is responsible.
"We feel pretty confident we have identified and investigated the situation and taken care of it," Yoder said.
As the suspect is a juvenile, no name is being released.
Yoder said the police expect to turn the case over to the county prosecutor in a few days.
"We don't believe there is a threat anymore," Yoder said.