Collembola of the grave: a cold case history involving arthropods 28 years after death

This report describes a cold case in which a cadaver of a 28-year-old female was exhumed in February 2005 from a cemetery in Battle Creek, Michigan. She had sustained a gunshot wound to the head and was found dead in her home on November 15, 1977. The body of the victim was subsequently embalmed and then buried at a depth of 1.8 m in an unsealed casket that was placed inside an unsealed cement vault. The exhumation yielded thousands of live specimens of a single species of the order Collembola or spring tails, Sinella (Coecobrya) tenebricosa (Entomobryidae). This species is considered to be a "tramp" species, cosmopolitan in the United States and Canada. Due to the ideal environmental conditions at the site, the population of this species underwent growth and development inside the casket for a number of years. Collected with the Collembola were large numbers of Acarina (mites) of the Family Glycyphagidae, and fly puparia, Conicera tibialis Schmitz (Order: Diptera, Family: Phoridae), also known as coffin flies. These invertebrates are sometimes mentioned by forensic investigators as occurring on corpses in graves, but aspects of their life history are rarely described. The species of Collembola that was found surviving and reproducing on this corpse in a casket exhumed after 28 years was the oldest reported grave site occurrence for any collembolan species based on a survey of the literature back to 1898.     

Developing and Testing a Soil Property Database for Forensic Applications in Southern California

The research sought to develop and test a forensic database of surface soil variability within previously mapped geologic and soil units in southern California. This type of database could be used to link suspects to crime scenes or determine source locations of soil sample evidence. Variability was evaluated using (i) color, (ii) magnetic susceptibility, and (iii) particle‐size distribution. Soil properties were analyzed for their ability to discriminate source areas using stepwise discriminant analysis. The percent correct predictions for geologic unit groups ranged from 30% to 100%. A blind study experiment matched four of the 18 samples to their unit of origin with the first choice by stepwise discriminant analysis, and eight were matched as second and third choices. The probability of selecting the appropriate unit of origin increased by 54% over random chance and eliminated as much as 99% of the field area as a potential search location.     

The role of religious coping on problematic alcohol consumption by police officers

Problematic alcohol consumption by police officers is well documented in the literature. It also shows that critical incident stress is correlated with this behavior. A separate body of research indicates that religious coping exerts a moderate protective effect on various types of problematic behavior, including problematic alcohol consumption. We merge these literatures in an effort to determine if religious coping reduces problematic alcohol consumption by police officers and whether it mitigates the positive relationship between critical incident stress and problematic drinking. Data from the Police Stress and Domestic Violence in Police Families in Baltimore, Maryland, 1997–1999 are analyzed to examine these propositions (n = 1004). Results indicate that police officers with higher levels of religious coping were in fact less likely to report problematic alcohol consumption. However, religious coping did not mitigate the positive relationship between critical incident stress and problematic alcohol consumption. The implications of our findings and suggestions for future research are discussed.     

The Effectiveness of a Mental Health Court in Reducing Recidivism in Individuals with Severe Mental Illness and Comorbid Substance Use Disorder

The current study examined the efficacy of a specialized mental health court in reducing recidivism for severely mentally ill defendants with comorbid substance use disorders. There is a wealth of research supporting the efficacy of mental health courts in reducing recidivism for those with severe mental illness; however, the benefit of these courts for individuals with severe mental illness and comorbid substance use disorders has received limited empirical attention. Participants were 514 defendants enrolled in either a traditional adversarial court or a specialized mental health court. Recidivism was assessed across different outcome variables, including frequency of reoffending, severity of new offenses, and length of time to reoffend. When compared to participants in the traditional adversarial court, enrollment in mental health court was associated with a greater length of time to rearrest and fewer participants were rearrested in the mental health court than the traditional court. Group differences between those with and without comorbid substance use disorders who were enrolled in the mental health court were not found across recidivism outcome metrics. Results of the current study are particularly promising given that defendants with substance use disorders are at a greater risk for reoffending.