A method for reducing violence within crowded venues includes reading license plates of vehicles passing into entry ports of a parking area, and capturing facial images of persons seeking admission to the venue. The switch arrays may include an array of dome spring elements. A contact by a user with the touch-sensitive display that corresponds to the respective icon is detected. The conductive lead has a proximal end electrically coupled to the second terminal of the indicator lamp, and a distal end terminated with an electrically conductive connector. After alignment is achieved, the index tab is adhered to the mounting sheet. The third beam has a first polarization and the fourth beam has a second polarization.