Sets up, operates, maintains, and monitors various electronic equipment such as CCTV (closed circuit television), paging systems, wireless microphones, audiovisual systems, audio and video recorders, overhead projectors, two-way radios, metal detectors, surveillance cameras, and panic alarms.Â. Inspects the assigned courtroom and court facility for explosives, firearms, and weapons, and searches individuals entering the court facility, confiscates unauthorized weapons and contraband, and takes custody of evidence in court which may include securing guns, ammunition, and knives.Â