Sesebelisoa sena se khona ho bona lik'hamera tse patehileng (ho kenyelletsa le pono ea bosiu), li-trackers tsa GPS, lisebelisoa tsa ho mamela tse se nang mohala, le lisebelisoa tsa ho beha maemo a khoheli li sebelisa theknoloji e tsoetseng pele ea RF le ea infrared scanning.