觀護人對測謊在性侵害加害人觀護效能之知覺研究

綜觀國內外探究測謊於性侵害加害人觀護與治療效益的研究，多以量化方式呈現，缺乏從質化的角度深入瞭解測謊的功能，以及其如何運用於性侵害加害人觀護中。因此，本研究旨從觀護人的視角，探究其如何覺知測謊在性侵害加害人觀護中的效能。研究者以分層立意抽樣法，選取七名觀護人進行深度訪談，並採取主題分析法作為分析質性資料的策略。本研究發現，測謊具有心理嚇阻的作用，而觀護人進一步運用該功能，將測謊作為制訂或調整觀護計畫的重要工具。惟囿於測謊有其限制存在，觀護人並未將測謊視為處遇加害人的唯一重要措施。另一方面，研究者以操作制約解釋測謊於形成加害人內在制約的歷程，並針對觀護人運作測謊的方式及所需注意的議題，進行討論。研究者亦一併提供未來研究的可行方向，以及相關處遇人員在測謊實務運作上之建議。

關鍵字

性侵害加害人；測謊；觀護；觀護人

並列摘要

Previous studies chiefly focused on the quantitative effectiveness of polygraph testing in sex offender supervision and treatment. However, qualitative studies examining the function and practical use of polygraph testing are in their infancy. Hence, the current study aims to explore how probation and parole officers perceive the effectiveness of polygraph testing in sex offender supervision from a qualitative perspective. Using stratified purposeful sampling, this study collected qualitative data from in-depth interviews with seven probation and parole officers. These data were further analyzed using thematic analysis. The findings indicate polygraph testing acts as a psychological deterrent, and therefore probation and parole officers utilize polygraph testing as an important tool in making or adjusting supervision plans. However, in light of the limitations of polygraph testing, probation and parole officers do not regard polygraph testing as the only important supervisory measure. On the other hand, operant conditioning is presented to explain the shaping process of the offender's internal conditioning resulting from polygraph testing. The ways probation and parole officers use polygraph testing and related issues are discussed. The authors also make recommendations for future research and practitioners' use of polygraph testing in sex offender supervision and treatment.