1 University of Lausanne, Switzerland.
Sex Abuse. 2019 Oct;31(7):812-836. doi: 10.1177/1079063218784558. Epub 2018 Jul 2.
This study-based on a national data set ( = 1,447)-focuses on extrafamilial sexual assaults and their mobility. Spatial information about the offender's house, the victim's house, and the crime scene was combined in mobility crime triangles. The findings reveal that most of the assaults fall in the categories of total mobility (42.78%) and offender mobility (33.10%). Our results also show the validity of the distance decay function with over 50% of aggressions occurring within 3 km of the offender's house. The analysis did not reveal the existence of buffer zones, probably due to the acquaintance between some of the offenders and their victims. The evidence suggests that environmental risk factors are more significant than individual ones when it comes to explaining the variation among mobility patterns in sexual assaults. Offenders appear to adapt their mobility patterns and modus operandi according to the environmental constraints. Often, offenders choose their own or their victim's house as a safe environment for performed sexual assault.
本研究基于一个全国性数据集（=1447），重点研究了家庭外性侵犯及其流动性。关于犯罪者住所、受害者住所和犯罪现场的空间信息被整合到流动性犯罪三角中。研究结果表明，大多数性侵犯属于完全流动性（42.78%）和犯罪者流动性（33.10%）。我们的结果还表明，距离衰减函数是有效的，超过 50%的侵犯行为发生在犯罪者住所 3 公里以内。分析并未发现缓冲区的存在，这可能是由于一些犯罪者和受害者之间相识。证据表明，在解释性侵犯中流动性模式的变化时，环境风险因素比个人因素更为重要。犯罪者似乎根据环境限制来调整他们的流动性模式和作案手法。通常，犯罪者会选择自己或受害者的住所作为进行性侵犯的安全环境。
