The Electronics Unit provides electronic support services for the Department, such as technical investigative support utilizing electronic surveillance devices. Electronics Unit personnel design, construct, and modify electronic equipment to match the nature of the investigations they support. This Unit also provides services such as reproducing audio and videotapes for court, repairing and maintaining recording equipment, and audio and video enhancement and analysis. The Electronics Unit also conducts technical security countermeasure sweeps (debugging) for Department entities and City officials. In addition to investigative functions, the Electronics Unit prepares public address systems for major Department events such as the annual Celebrity Golf Tournament.