Police psychology: The influence of Daubert and its progeny

In the current legal atmosphere, any practicing professionals, including police psychologists, may expect to have their decisions challenged in court. If such a challenge is not met, it may have a disastrous financial and reputational impact for both the psychologist (and other expert consultant) and the employer or contractor by whom the psychologist has been retained. The rules for expert witness qualification throughout the nation have been very strongly effected by the introduction of the Federal Rules of Evidence in 1975 and subsequent case law, particularly theDaubert, Joiner, andKumho Tire Supreme Court decisions. This article examines the history of the development of theDaubert Standard and proposes principles for potential expert witnesses in order to minimize the likelihood of aversive consequences, such as disqualification or malpractice accusations. Authors' Note: Cary Rostow, Ph.D., is president of Matrix, Inc., Baton Rouge, Louisiana, and is in private practice in Baton Rouge. He holds a Diplomate in Police and Criminal Psychology from the Society for Police and Criminal Psychology. Robert Davis, Ph.D., is executive vicepresident and director of science, research, and development, for Matrix, Inc., and has a private practice in Baton Rouge, Louisiana. He holds a Diplomate from the Society for Police and Criminal Psychology. Judith Levy, Ph.D., is currently a postdoctoral fellow at Matrix, Inc.     

Advancing police use of force research and practice: urgent issues and prospects

Leading police scholars and practitioners were asked to reflect on the most urgent issues that need to be addressed on the topic of use of force. Four themes emerged from their contributions: use of force and de-escalation training needs to improve and be evaluated; new ways of conceptualizing use of force encounters and better use of force response models need to be developed; the inequitable application of force, and how to remediate biases, needs to be more fully understood; and misconceptions about police use of force need to be identified and corrected. The highlighted topics serve as an agenda for future research. Such research should provide greater insight into when, where, and why force is used by police officers, and how it can be applied appropriately. If implemented, the practical recommendations included in the contributions should have a positive impact on police performance, public trust and confidence in the police, and citizen and officer safety.     

The transfer and persistence of trace particulates: experimental studies using clothing fabrics.

A series of experiments were conducted using various types of pollen grain, powder and metal particulates to determine their persistence on a range of different types of materials. The decay curves generated in the repeated experiments all broadly conform to those obtained and already presented in the literature for fibres and glass particulates. The experiments presented in this paper were conducted for up to 647 hours for individual runs and it was found that a general rule existed that it was the material type rather than the particulate type that was the major controlling factor in the persistence of particles. For the pollen grain experiments the overall theory is sustained; there is a significant loss initially followed by a slower decay although this is not precise given the varied nature of palynomorph types. The manner by which the particulates were introduced onto the material had an initial immediate effect, however, the persistence of these particulates over longer periods of time was generally unaffected.     

Hearing silenced voices: developing community with an advisory committee

This article focuses on the challenges and effects of adhering to community participation as a principle of community development and the related issue of reflecting diverse representation in prevention and health promotion planning. As a requirement of funding agencies, the consequences of upholding these principles in light of the resources made available are explored. Information is drawn from a case study of an advisory committee with diverse membership. A participatory evaluation of this committee illustrates the difficulties encountered when a community agency initiated a health promotion project to address the needs of women who are non‐verbal and at risk of sexual assault. Suggestions are made as to how these difficulties may be overcome. The advisory committee is a common means for community development but also has the potential to be a model for increased communication and understanding.