性侵害犯罪之作案手法分析

An Analysis on the Modus Operandi of Sexual Crime

魏渝鍹(Yu-Hsuan Wei)

指導教授 ： 侯崇文

國立臺北大學/社會科學學院/犯罪學研究所/碩士(2014年)

摘要

綜觀國內對性侵害犯罪之相關研究不少，但著重在性侵害犯罪影響因素、特質探討；針對性侵害犯罪者之作案手法，以量化方式的研究相當貧乏。本研究旨在探討，我國性侵害犯罪者的作案手法，其中包含犯罪情境、犯罪方式（前、中、後）、犯罪動機等。同時，透過關聯分析，了解不同加害人犯罪動機、加害人與被害人彼此關係，在基本人口特性、作案手法的差異；其次在於了解基本人口特性，例如被害人年齡、犯罪多元類型等變項，與作案手法的關係。

本研究以民國100-102年，北部地方法院刑事判決書，性侵害犯罪為個案來源，經研究者篩選過後，符合本研究分析條件之樣本計225位。本研究並對判決書內容進行資料庫編碼，將所得資料變項以卡方列聯統計進行資料分析。

研究結果顯示：（1）基本人口特性在作案手法變項上有關聯性。例如：精神異常的加害人較無明顯的犯案準備，且有多使用凶器犯案的現象；已婚的加害人較未婚者犯後態度呈現否認、態度不佳的情形。（2）加害人不同犯罪動機，在犯罪手段、反綁被害人、犯罪工具等變項有關聯性。例如：情感型之加害人較另二類型，在作案手法上較為多元、暴力的現象。（3）加、被害人彼此關係不同，在犯罪時間、工具、手段等變項有關聯性。例如：加害人趁被害人喝醉酒的情形性侵害，加、被害人彼此關係以陌生型、熟識型居多。本研究提刑事司法人員偵辦案件參考之建議，並作為未來我國性侵害犯罪預防的可行方針。

關鍵字

犯罪動機 ； 作案手法 ； 性侵害

並列摘要

Many papers talked about rape. Most of the studies emphasize the factors of criminal motivation and the personal backgrounds of the offenders. However, serious quantitative researches are quite limited. In particular, there is a lack of studies on topics related to the criminal modus operandi. This research is to fill in this literature vacuums. We intend to explore the modus operandi of the sexual crime, including the criminal situations, the methods of the crime and the criminal motivation. Simultaneously, we intend to analysis the relationships between the criminal modus operandi and the criminal motivations. We also would explore the relationships between criminal modus operandi and the personal factors of the offenders, such as age, and the previous offenses.

Data are collected from the court records in a northern city in Taiwan for three years, beginning 2011 and 2013. A total of 225 rape cases were located for analysis. The research conclude that: (1) there is a relationship between personal factors of the offenders and criminal modus operandi. For example, insane rape offenders seem to take criminal actions without careful planning. Moreover, they use weapons more often than regular rape offenders. The married offenders have negative attitude after their offenses. Often they denied their criminal motives. (2) The difference between the criminal motivations of offenders has much related to the criminal modus operandi, including the offenders with affective motivation have more diverse and violent modus operandi than other types. (3) The relationship between offenders and victims has much to do with the crime events, including the time of the offenses, the use of the weapons, and the methods of the crime. For example, the stranger relationship between the offender and the victims often take advantages of the situation when the victims are drunk. Similar relationship also found on cases where the offenders and the victims are acquaint with each other.
The research also proposes a strategy of crime prevention for rape based on the above findings.

並列關鍵字

criminal motivation ； modus operandi ； sexual crime

參考文獻

侯友宜（2003）。性謀殺犯罪剖繪研究。犯罪學期刊，6(1)，129-148。

許春金（1996）。犯罪學。臺北市：三民。

楊士隆（1996）。犯罪心理學。臺北市：五南。

蔡新合（2001）。強姦犯的心理剖繪與類型研究。法令月刊，52(7)，15-31。

林桂鳳（2003）。性侵害加害者依附經驗之研究（博士論文）。