It is already one week since the bomb attack in center city of Bankok. Suspect ID and motive of crime are still unknown. Thailand police officer said on 24th, it is hard to arrest crime due to the bad condition cctv. Sometimes there are 20 cctvs on the street , but only 5 sets are on work. Besides, Tai poice lack high tech and equitments to identify crime on monitor control, such as face identification tech and surveillance video processing equipments. Tai police hope that other countries could help them to find out the truth.