According to the arrest report, Marlowe appeared belligerent and said he entered the classroom to "test the school's security." The report said Marlowe accessed the classroom after a student didn't shut the door all the way, preventing it from locking.
The school's principal, Todd Sparger, said the school is evaluating the situation and its response.
Although Marlowe is 51, Sparger said there was some uncertainty about whether he was a student or not when it came to calling a Code Red.
Marlowe's criminal record includes arrests for drug possession and battery. He faces charges of trespassing on school grounds, campus disruption and disorderly conduct for this incident.
>> Watch bodycam footage of the arrest here