Inmates: Harassing this guard will only get you in trouble. Three robotic prison guards are being tested at a prison in the South Korean city of Pohang.

The robots will monitor inmates’ activities, reporting any inconsistencies or odd behaviors back to a manned control center. Because the robots learn the common behaviors of inmates, they can help prevent suicides, fights and arson.

The prison began testing the robots this month, according to Reuters.

Standing at five feet tall, these robots are equipped with 3D cameras, microphones and a speaker. The bots have what looks like a head, but do not have a humanoid form.MORE