The principal of Sahuaro High School was arrested Tuesday afternoon on a misdemeanor assault charge for an incident involving the 16-year-old boyfriend of his stepdaughter.

Christopher Bonn, 40, was cited and released, said Sgt. Maria Hawke, a spokeswoman for the Tucson Police Department.

According to a statement issued by Bonn’s attorney Brad Roach, Bonn woke up early Monday and found the girl missing from her bed. He suspected she was with the boy who “previously brandished a firearm at Dr. Bonn,” according to the statement.

Bonn had told the boy he was not allowed around the girl or his home, the statement said.

The boy drove past Bonn’s home and parked nearby and Bonn waited for the girl to get out of the car for over 20 minutes.

“Eventually, Dr. Bonn became worried about his daughter’s safety,” according to the statement.

Bonn opened the driver’s door and saw the boy reach for something in the center console and thought it was a gun, the statement said.

“Dr. Bonn reacted with a limited physical response to prevent any danger to himself or his daughter,” the release said.

“While Dr. Bonn regrets that this incident occurred he acted as a father to protect his daughter and himself from a dangerous person and situation,” the statement said.

The boy told police Bonn opened the door and was yelling and struck him without being provoked, Hawke said.

Bonn has been “assigned to home,” while the Tucson Unified School District reviews the incident to determine appropriate action, Cara Rene, a district spokeswoman, said in a written statement.

“The protection of our students is a priority for TUSD and any behavior that threatens that protection is completely inappropriate and unacceptable,” the statement said.

“While the altercation was an off-duty incident that occurred outside of any TUSD property, the district is taking this measure to ensure our students are safe at school.”

Veronica Cruz