Factors affecting the forensic examination of automotive lubricating oils

Lubricating oil comparisons impact a variety of forensic investigations, including cases where oil was transferred from a suspect vehicle to the crime scene or victim. In this study, high-temperature gas chromatography/mass spectrometry was used to examine the influence of oil mixtures and oil changes over time on the comparison of known and questioned lubricating oils. Varying concentrations of oil mixtures were prepared and showed the potential for identifying individual components. Motor oils from 18 automobiles monitored over a 2-month period did not demonstrate significant changes in the chromatographic data. Chemometric analysis of motor oil mass spectral data provided little information regarding differentiation of, or changes in, the samples. Power steering fluid (PSF) from a naturally occurring leak collected from several locations was consistent with the PSF in the automobile's reservoir, and the PSF composition did not change over time.     

More than the sum of its parts? Itemizing impairment in civil cases

Purpose. The purpose of the present study is to determine whether making multiple damage awards influenced civil mock jurors' assessments of those damage awards. Specifically, how does making one decision for pain and suffering damage awards versus two decisions (one for mental pain and suffering and physical pain and suffering) versus four decisions (one for loss of enjoyment of life, mental anguish, disfigurement, and physical disability/impairment) influence overall non‐economic damage awards. Methods. One hundred twenty undergraduates from a psychology participant pool read a case vignette that included information regarding four types of injuries that the plaintiff endured: loss of enjoyment of life, mental anguish, disfigurement, and physical disability/impairment. Participants were randomly assigned to render either one award for pain and suffering, two awards (one for physical pain and suffering and one for mental pain and suffering), or four awards (one for each pain and suffering element). Results. Results indicated that participants who rendered four awards provided significantly higher overall non‐economic damage awards than participants who provided one overall award. The variability of damage awards also increased as the number of damage awards increased. Conclusions. Itemizing non‐economic damage awards into distinct injury categories can lead to an increase in overall non‐economic awards. Members of the legal arena should be cautioned against itemizing damages to prevent variability in non‐economic awards.     

Correctional destabilization and jail violence: The consequences of prison depopulation legislation

Purpose

This study explored the effects of prison depopulation on local jail violence through a general systems perspective – where an abrupt shift in the processing of offenders had the potential to create ripple effects through other organizations – of the criminal justice system.

Methods

In 2011, California passed the Criminal Justice Realignment legislation aimed to reduce prison population by making low-level felony offenders ineligible for state incarceration and diverting those already in state prison for the included offenses from state to county-level community supervision once paroled. This study incorporated bivariate and negative binomial regression analyses to model officially-recorded county jail panel data to estimate the effects of state prison depopulation on California county jails.

Results

Findings demonstrated support for the general systems framework as there was a significant decrease in jail utility in the bivariate analysis and a significant increase in jail violence in the multivariate analysis associated with passage of California’s prison depopulation legislation.

Conclusions

The results supported the notion of an interconnected criminal justice system. Policy implications include the consequences of increased violence on jail operations, the potential for a cadre of habitual offenders, and generalizing these findings to the community.