Stature and Body Weight Estimation from Various Footprint Measurements Among Egyptian Population

Abstract: Analysis of footprints can reveal very important clues which can be used as a forensic evidence and help in the estimation of stature and body weight of an individual. In this work, bilateral footprints were obtained from 50 male Egyptian medical students ranging in age between 18 and 25. Nine measurements were taken on each footprint. The result revealed significant bilateral asymmetry (p < 0.001) except foot breadth at ball. The significant and positive highest correlation coefficients with stature were shown by toe‐5 length on right side (R = 0.58) and with body weight by foot breadth at ball on left side (R = ?0.52). Regression equations presented smaller standard errors of estimate (3.52–4.69) in determination of stature than those in estimation of body weight (4.05–5.28). In conclusion, this study has provided equations that help to estimate stature and body weight from footprint measurements among Egyptians.     

Maximum range of pellets fired from a shotgun

A mathematical model to determine the maximum range of pellets fired from a shotgun has been suggested. It has been assumed that the air resistance experienced by a pellet is proportional to the square of its velocity (?μV²) where $\text{μ =}\text{A}\text{C}$ with

$\text{C=0.061}\text{86}\text{N}{}^{\mathrm{<mtext>1</mtext><mtext>3</mtext>}}$

and

$\text{A=}\text{1}\text{[17 696+2N+10 000(0.2?d)]}$

N is the number of pellets/ounce and d is the diameter of the pellets in inches. A method for calculating the maximum range has been suggested, and the values obtained for Buck 00, size 8 and size 9 American pellets are very close to the reported experimental observations. The maximum ranges for other sizes of pellets have also been calculated. The angle of projection decreases with increase in velocity and increases with increase in the weight of the pellet. It varies between 26° to 32° for common sizes of pellets and standard shotgun velocity. The maximum range in air is only 1 – 3% of the range attained by a pellet in vacuum.     

The efficacy of foot patrol in violent places

Objectives

This study examines the effectiveness of foot patrol in violent micro-places. A large urban police department deployed foot patrol in micro-places (hot spots) for a period of 90 days for two shifts each day. Our objective is to determine whether this activity impacted violent crime in these hot spots and whether spatial displacement of crime occurred.

Methods

Eight eligible foot beat locations were set by examining crime rates for previous years in order to identify micro-places of high criminal activity. We employed a quasi-experimental design comparing the four treatment to the four control areas, estimating panel-specific autoregressive models for 30 weeks prior to and 40 weeks after the treatment.

Results

Time series models revealed statistically significant reductions in violent crime in the micro-places receiving foot patrol treatment, while no such reductions were observed in the control areas. The deterrent effect, however, was short and dissipated quickly. Control areas did not experience any crime prevention benefit during this time period. No evidence of crime displacement to spatially contiguous areas was detected.

Conclusions

This contributes to the growing body of knowledge that focused police strategies within hot spots impact violent crime. Specifically, the implementation of foot patrol in high crime hot spots led to measurable reductions in aggravated assaults and robberies, without displacing crime to contiguous areas.

     

Reducing Intimate Partner Violence Among Latinas Through the Moms’ Empowerment Program: an Efficacy Trial

Although intimate partner violence (IPV) is a particularly prevalent public health concern among Latina populations, the evidence-based treatment options for Latinas who experience IPV are limited. The present study tested the efficacy of the Moms’ Empowerment Program (MEP), an intervention for Spanish-speaking Latina mothers who had recently experienced IPV. Participants (N?=?95) were assigned to a Treatment (n?=?55) or a waitlist Control (n?=?40) condition, and those in the Treatment group completed a 10-week intervention designed to address the problems associated with IPV. Intent-to-treat analyses using multiple regression revealed that Latinas’ participation in the MEP was associated with reductions in IPV exposure. These findings provide preliminary evidence that the MEP may reduce exposure to physical violence among Spanish-speaking Latinas.     

Music therapy for improving mental health problems of offenders in correctional settings: systematic review and meta-analysis

Objectives

The aim of this review was to assess the effectiveness of music therapy on improving the mental health of offenders in correctional settings.

Methods

Multiple databases and journals were searched to identify randomized controlled trials and quasi-randomized controlled trials of music therapy for offenders in correctional settings.

Results

Five studies (n?=?409; predominantly male) were included in random-effects meta-analyses. Music therapy was effective for promoting offenders’ self-esteem (Hedges’ g?=?0.55, p?<?0.001) and social functioning (g?=?0.35, p?<?0.05). Effects on anxiety and depression depended on the number of sessions. For both outcomes, the studies with 20 or more sessions had larger effects than the study that had fewer than 20 sessions, and this difference was statistically significant (Q?=?11.88, df?=?1, p?<?0.001, anxiety; Q?=?9.16, df?=?1, p?=?0.002, depression). No significant effects were found on behavior management or between different music therapy approaches.

Conclusions

Music therapy may be helpful for offenders to improve mental health. Future studies should consider including offenders of both genders, using larger sample sizes, and examining long-term effects. Publication bias may be an issue for this review given the small number of studies and the small sample sizes.

     

Detecting the True Nature of Allegations of Rape

A study was conducted to test whether it is possible to build a model to distinguish true and false allegations of rape based on the theory of fabricated rape. The theory is based on the principle that a false complainant of rape has not been raped and has to fabricate a story while the story of a true victim is based on recollections of the event. Consequently, false complainants will behave as liars do, construct their story based on their own sexual experiences and on mental representations, beliefs of how such a crime would happen (De Zutter et al. in Eur J Psychol Appl Leg Context. doi: 10.1016/j.ejpal.2016.02.002, 2016). To test the theory and to build a model to discriminate between true and false allegations of rape, a police sample of true and false allegations was studied. A total of 129, 72 true and 57 false, allegations of rape fulfilled the stringent criteria of the current study, among others on ground truth. Fifty-four allegations of rape, 27 true and 27 false, were used to build a prediction model based on the theory of bounded rationality by Gigerenzer (2002). The remaining 75 cases, 45 true and 30 false, were blindly categorised as either true or false based on the model. The model was able to predict the true nature of the majority of allegations with an accuracy rate of 91 %. Thus, it seems possible to discriminate to a considerable extend between true and false allegations of rape.     

Parental Models of Family Violence and Associations with Partner Violence for College Women from Three Countries

The present study provides a cross-national comparison of parental models of family violence as predictors of romantic partner violence reported by college women. Participants included college women from the United States (n?=?319), Spain (n?=?95), and Turkey (n?=?207) to report violence in five relationships: father-to-mother, mother-to-father, father-to-participant, mother-to-participant, and romantic-partner-to-participant. Multiple regression revealed that partner violence received by college women was best explained by mother-to-father violence for the United States sample, but by father-to-mother violence for the Spanish and Turkish samples. Results may be useful for college women to identify family and cultural risk factors for romantic partner violence so that they may work to protect themselves and their educational opportunities.     

The Police Officer Perception Project (POPP): An experimental evaluation of factors that impact perceptions of the police

Objectives

To experimentally evaluate the effects of attire and patrol strategy esthetics on participants’ perceptions of police officers.

Methods

Using a rigorously controlled experimental methodology, I present participants (N = 307) with images of police officers in different attire (i.e., uniform and civilian) and patrol strategies (i.e., on a bicycle, on foot, and in a vehicle) and measure their perceptions of these officers as aggressive, approachable, friendly, respectful, and accountable.

Results

Participants express relatively positive perceptions of the police; however, their perceptions vary as a function of sociodemographics, attire, and patrol strategy. Police officers are generally perceived more favorably when presented in police uniform than when presented in civilian clothing. Police officers are also generally perceived more favorably when presented on a bicycle and/or on foot than when presented in a vehicle.

Conclusions

Merely observing police officers in different attire and patrol capacities produces substantial variation in perceptions of those officers. Given that most ‘police interaction’ occurs in relatively unceremonious settings without any exchange of formal dialogue between the public and the police (e.g., observing a police officer in passing), these findings are particularly fruitful for informing both research and practice. This is the first known study to use an experimental methodology to examine how esthetic factors of different patrol strategies can impact perceptions of the police.

     

Consequences of legal risk communication for sanction perception updating and white-collar criminality

Objectives

Scholars have long emphasized that communicating, or “advertising”, information about legal sanction risk is necessary for the success of deterrence-based crime policies. However, scant research has evaluated whether direct communications about legal risk can cause sanction perception updating, the updating of ambiguity in sanction perceptions, or changes in persons’ willingness to offend. No prior studies have evaluated sanction perception updating for white-collar crimes.

Methods

To address this research void, the current study analyzes data from an experiment embedded in a recent national survey (N?=?878). Multivariate regression models estimate the effect of providing participants with information about the “objective” arrest risk for white-collar offenses on their sanction perceptions.

Results

The findings provide the first evidence that such information, when it is inconsistent with individuals’ prior beliefs, causes them to update: (1) their perceptions of the certainty of arrest; (2) their ambiguity about arrest risk; and, indirectly, (3) their willingness to commit white-collar crimes.

Conclusions

The results imply that individuals are willing to incorporate relevant information into their subjective beliefs about sanction risks. Importantly, however, they also make meaningful distinctions about the value of new information for understanding criminal risks.