Leakage in the context of threat assessment is the communication to a third party of an intent to do harm to a target. Third parties are usually other people, but the means of communication vary, and include letters, diaries, journals, blogs, videos on the internet, emails, voice mails, and other social media forms of transmission. Leakage is a type of warning behavior that typically infers a preoccupation with the target, and may signal the research, planning, and implementation of an attack. Nomothetic data suggest that leakage occurs in a majority of cases of attacks on and assassinations of public figures, adult mass murders, adolescent mass murders, and school or campus shootings: very low-frequency, but catastrophic acts of intended and targeted violence. Idiographic or case data illustrate the various permutations of leakage. We discuss the operational importance of the concept, place it in the context of other warning behaviors, emphasize the need for further research, and outline risk management strategies for the mitigation of such acts of violence in both law enforcement and clinical mental health settings.
Controversy exists in the literature and society regarding what motivates serial sexual killers to commit their crimes. Hypotheses range from the seeking of sexual gratification to the achievement of power and control to the expression of anger. The authors provide theoretical, empirical, evolutionary, and physiological support for the argument that serial sexual murderers above all commit their crimes in pursuit of sadistic pleasure. The seeking of power and control over victims is believed to serve the two secondary purposes of heightening sexual arousal and ensuring victim presence for the crime. Anger is not considered a key component of these offenders' motivation due to its inhibitory physiological effect on sexual functioning. On the contrary, criminal investigations into serial sexual killings consistently reveal erotically charged crimes, with sexual motivation expressed either overtly or symbolically. Although anger may be correlated with serial sexual homicide offenders, as it is with criminal offenders in general, it is not causative. The authors further believe serial sexual murderers should be considered sex offenders. A significant proportion of them appear to have paraphilic disorders within the spectrum of sexual sadism. "sexual sadism, homicidal type" is proposed as a diagnostic subtype of sexual sadism applicable to many of these offenders, and a suggested modification of DSM criteria is presented.
This paper examines the relationship between productivity and workers' safety in firms characterized by very different types of relations in production. Arguments are developed to explain why worker cooperatives are expected to have higher productivity and lower accident rates than conventional capitalist firms. Workers who own and control their firms are expected to have a greater incentive to be efficient and a greater ability to safeguard their health than workers employed under hierarchical and alienating conditions. The hypotheses are tested by comparing carefully matched conventional and cooperative plywood companies. Preliminary results suggest that while cooperatives may be more productive they are not safer, indicating the limits of the isolated cooperative form in capitalist market economies.
This chapter addresses the fundamentals of threat assessment for professionals new to the field. Threat assessment is a critical thinking analysis that requires a multidisciplinary and peer review approach. Some of the fundamental concepts of threat assessment discussed in this chapter include the need for a detailed evaluation of the threatener’s background, including background patterns of behavior, motivation, and abilities to carry out the threat. The use and relevance of self-reported information in a threat assessment context must be very carefully evaluated because of the possibly deceptive motivations of the person providing it. Also discussed in this chapter are adolescents as unique offenders from a threat assessment perspective; their psychological, emotional, and brain development is unique and critical for the threat assessor to understand and to discern when evaluating their potential to make threats and carry them out. Key concepts integral to threat assessment also discussed in this chapter include evidence of escalation, injustice collecting, superficial indicators of normalcy, hatred and other emotions as motivators for carrying out threatened acts of violence, and the categories of reasons for the misinterpretation of dangerous and violent behavior by individuals close to or associated with the threatener.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.