The purpose of this study is to develop a system that provides audio video recording real time searching and communication capability for the police patrolling duty in the metropolitan area. This system will help users to transmit any on site live data through Wireless LAN CHT Wi-Hi or 3G to the server. This system will automatically send an alert message to any on-duty policeman and out-of-office chief officers. It will also provide a channel for any on-line database searching through Internet web. In this study, a MTCCS system for police patrolling duty will provide a useful system for anti-terrorism.