Detecting Submerged Bodies: Controlled Research Using Side‐Scan Sonar to Detect Submerged Proxy Cadavers

Forensic investigators routinely deploy side‐scan sonar for submerged body searches. This study adds to the limited body of literature by undertaking a controlled project to understand how variables affect detection of submerged bodies using side‐scan sonar. Research consisted of two phases using small and medium‐sized pig (Sus scrofa) carcasses as proxies for human bodies to investigate the effects of terrain, body size, frequency, swath width, and state of decomposition. Results demonstrated that a clear, flat, sandy pond floor terrain was optimal for detection of the target as irregular terrain and/or vegetation are major limitations that can obscure the target. A higher frequency towfish was preferred for small bodies, and a 20 m swath width allowed greater visibility and easier maneuverability of the boat in this environment. Also, the medium‐sized carcasses were discernable throughout the 81‐day study period, indicating that it is possible to detect bodies undergoing decomposition with side‐scan sonar.     

Constituting 'the public' in public participation

The emphasis on public participation in contemporary policy discourse has prompted the development of a wide range of forums within which dialogue takes place between citizens and officials. Often such initiatives are intended to contribute to objectives relating to social exclusion and democratic renewal. The question of ‘who takes part’ within such forums is, then, critical to an understanding of how far new types of forums can contribute to the delivery of such objectives. This article draws on early findings of research conducted as part of the ESRC Democracy and Participation Programme. It addresses three questions: ‘How do public bodies define or constitute the public that they wish to engage in dialogue?’; ‘What notions of representation or representativeness do participants and public officials bring to the idea of legitimate membership of such forums?’; and ‘How do deliberative forums contribute to, or help ameliorate, processes of social inclusion and exclusion?’     

Interpreting Sexual Dating Encounters: Social Information Processing Differences in Men and Women

Research has shown that college women are at considerable risk for sexual assault by dating partners, and studies have shown early detection of threat risk cues is an important factor in rape avoidance. This study examined how men and women process sexual encounters in a date rape situation and how they differ in interpretation of cues and response decision-making using Crick and Dodge’s (1994) model of social information processing (SIP). Participants listened to an audio vignette depicting a female resisting sexual contact as the male continues to make sexual advances. The vignette was paused at a point in which there is ambiguity concerning the sexual intentions of the actors, and multiple choice/forced answer questions reflecting five stages in social information processing (causal and intent interpretation, goal clarification, response decision, response efficacy, and response evaluation) were administered. Analyses revealed males and females significantly differed in all SIP stages, and emotional reaction was a significant predictor of response decision. Implications of the findings were discussed.