Nevertheless, these systems could be claimed on moral harassment due to unfriendly or unnaturally installed mobile sensors (e.g., people could feel uncomfortable when seeing robots run around, or being seized by strange equipment installed on agents or officers). Moreover, moving equipments, in some cases, could be easily disabled by criminals or by natural obstacles. Besides, using remote controls to interfere directly to cameras [1] (e.g., order to zoom in- or out-, or change angle view) could prevent team works since at one period only one person can control a camera.