In short, the anti-drug effort is like an enormous crossword puzzle for the police, with some of the pieces in Taiwan and others overseas. Unless transnational cooperation is possible, there will inevitably be gaps in the anti-drug picture.
換句話說，緝毒就像警匪雙方鬥智拼圖，一部分零星圖塊散置台灣，一部分卻在境外，如果不能跨國追擊，緝毒成果自然殘缺不全。