作者以執法者立場出發，發現色情行業難以根絕、抓不勝抓，性產業因應政府執法策略持續轉移犯罪地區、時間、方法、目標、類型或變更犯罪嫌疑人，並會因為犯罪轉移現象增加日後查緝之困難度，這些性工作者由於受限於諸多因素遭取締後多會重操舊業，不斷在政府掃黃大旗下尋覓生存空間。本文探討利益團體對我國性產業政策之影響，係以日日春關懷互助協會為個案，了解其過去捍衛性工作者權益之經驗及相關機會與限制，分析探討其政策過程及遊說策略，並深度訪談執法人員、主管機關承辦人及性工作者，試圖為我國性產業政策尋求出路，並對未來合理性專區發展勾勒出新的藍圖。

From the perspective of law enforcement, it is difficult to exterminate crime of sex trade. Because the industry, in response to criminal justice policy, would transfer to different crime place, time, method, target and type or even change the suspects. This displacement would, in turn, increase the difficulty of investigation. Yet the sex workers, under certain constraitns, would tend to live with the same work repeatedly after charged, struggling against the authority's intolerance to sex trade. This research sets Collective of Sex Workers and Supporters, COSWAS as a case exploring the influence that interest groups have on criminal justice policy in Taiwan. The research, via realizing the experience, opportunity and restriction that the society utilized to safeguard sex workers' rights and analyzing the process of shaping policies and lobbying strategies acquiring from in-depth interview with law enforcement official, staff in charge of sex industry in authorized institutions and sex workers, attempts to find a way out for the criminal justice policy in Taiwan and to design a blueprint of red-light districts and sex industry for the future.