This article explores the dynamics of cases involving family and acquaintance sexual offenders who used the Internet to commit sex crimes against minors. Although the stereotype of Internet crimes involves unknown adults meeting juvenile victims online, Internet use can also play a role in sexual crimes against minors by family members and acquaintances. Data were collected from a national samp...

The specificity and sensitivity of the phallometric test of an erotic preference for minors was assessed. The specificity was determined to be 96.9% if using a group of sex offenders against female adults and 80.6% if using a group of paid volunteers. Test results of 27 sex offenders against at least 2 female children each and of 22 offenders against at least 2 male minors each (either against ...

The rank-width is a graph parameter related in terms of fixed functions to cliquewidth but more tractable. Clique-width has nice algorithmic properties, but no good “minor” relation is known analogous to graph minor embedding for tree-width. In this paper, we discuss the vertex-minor relation of graphs and its connection with rank-width. We prove a relationship between vertex-minors of bipartit...