Moistened hands do not necessarily allude to high quality fingerprints: the relationship between palmar moisture and fingerprint donorship

We explored the quality distribution of ninhydrin-developed prints on A4 bond paper in two groups of individuals, in Israel and in India. While the quality distributions of the developed marks in both countries had some dissimilarities, both groups showed the expected bell-shape distribution, with the majority of the donors belonging to the central zone, defined as "average" or "good." Attempt was made to correlate between a physiological feature, palmar moisture, and the fingerprint donorship. As a rule, high fingermark quality could be associated with sweating hands, but there were individuals with moist palms whose fingermarks had a low score and vice versa. This finding supports the logical but hitherto unproven assumption that besides the amount of palmar sweat, the other physiological factor governing the prints' quality is the total amount of substrate, amino acids in this case, in the latent deposits, which depends on the substrate concentration in the sweat.     

The effectiveness of service work: An analysis of recidivism

The Israeli “service work” law of 1987 enables a court to commute prison sentences of up to 6 months to service work in the community. This paper examines the correctional effectiveness of this new sanction by comparing the rate of recidivism (over a period of 14 months) among 407 offenders sentenced to service work to that of 950 comparable offenders sentenced to imprisonment. As the research design is quasi-experimental, an adjustment for confounders is carried out using the propensity score (PS) methodology. The estimation of the odds ratio of recidivism with respect to sanction comprises two steps: (a) the PS, which is the conditional probability of assignment to a particular sanction given a set of confounders, is estimated by a logistic model; and (b) the conditional probability of recidivism, given the PS and other covariates, is estimated by a second model. The findings indicate that before an adjustment for the systematic differences between the two sanctions was carried out, the odds for recidivism among prisoners were 2.4 times higher than the odds for service workers. After the adjustment, the odds ratio was reduced to 1.7. This estimate indicates that the service work sanction has a considerable correctional effect. The need to address additional criteria for the effectiveness of service work (e.g., net-widening) is emphasized.     

Identification of firearms holders by the [Fe(PDT)3](+2) complex. Quantitative determination of iron transfer to the hand and its dependence on palmar moisture levels

Quantitative data are reported for the first time on the amounts of iron, which are transferred to the hand upon holding a firearm. Iron levels between 21-315 ng/cm2 were found on volunteers' palms after a single holding of a handgun. Determination of the iron traces was accomplished spectrophotometrically using 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT) as a complexing agent. The transfer of iron from firearms to the palm was found to be, by and large a chemical (dissolution) rather than mechanical dislodgement. The prime factor that determines the amount of iron transferred from the firearm to the hand is the moisture level on the palm. These findings are likely to be of importance in courts of law, as well as in the war against terrorism and serious crime.     

Comparison of violence and abuse in juvenile correctional facilities and schools

Peer violence, peer sexual harassment and abuse, and staff abuse experienced by boys and girls in juvenile correctional facilities are compared with those experienced by peers in schools in the community. Responses of 360 youths in 20 gender-separated correctional facilities in Israel to a questionnaire tapping these forms of mistreatment were compared with those of 7,012 students in a representative sample of Israeli junior high and high schools. Victimization was reported more frequently by those in correctional facilities than by those in schools. However, some of the more prevalent forms of violence and abuse were reported with equal frequency in both settings, and some more frequently in schools. Despite being victimized more frequently, those in the correctional facilities tended to view their victimization as a significantly less serious problem than those in the schools and to rate the staff as doing a better job of dealing with the problem.