Nocera said he confronted Keister about the harassment just hours before she is accused of breaking into West Wyoming’s municipal building, which houses the police department. The building was closed to the public for the night.
"I made her sign a piece of paper saying that she wouldn't contact (the) specific officer like she's been (doing), sending him upwards of 20 plus messages a day," Nocera told WNEP.
A few hours after signing that paper, Keister again called 911 and told a dispatcher she was going to the West Wyoming municipal building looking for the officer, the chief said. Surveillance footage from outside the building shows a woman identified as Keister knocking angrily on the door several times before picking up a cigarette butt urn that stood near the door, gripping it like a baseball bat and smashing in the glass door.
Watch the surveillance footage below, courtesy of ABC World News Tonight.
Footage from inside the building caught what happened next.
"She then entered the building, rummaged through the filing cabinets out in the borough building (and) tried to gain entry again by trying to kick the door in from the borough side into the police department," Nocera told WNEP.
The Citizens' Voice in Wilkes-Barre reported that Keister went through the filing cabinets looking for documents on the investigation into her alleged harassment of the unnamed officer. After walking back outside through the broken door, Keister used the urn to break more of the glass out of the door frame, the newspaper said.
Photos obtained by the paper show the door to the building surrounded by shattered glass and the urn lying on the floor inside.
The newspaper reported that Keister went to her vehicle and sat inside, waiting for officers to respond to the building. When an officer arrived, she charged him and swung at his head, police officials said.
Her alleged assault of the officer was also caught on camera. It took a second officer to help get her into handcuffs.
Nocera told WNEP that the department has to "beef up" security.
"(We need to) look around at all our municipal buildings -- fire, EMS (emergency medical services) and police -- to make sure that people like this can't break in and get to first responders," the chief said.