Stable Isotope Ratios of Marijuana. I. Carbon and Nitrogen Stable Isotopes Describe Growth Conditions*

Abstract: There remains significant uncertainty in illicit marijuana cultivation. We analyzed the δ¹³C and δ¹⁵N of 508 domestic samples from known U.S.A. counties, 31 seized from a single location, 5 samples grown in Mexico and Colombia, and 10 northwest border seizures. For a subset, inflorescences and leaves were analyzed separately. These data revealed a strong correspondence, with inflorescences having slightly higher δ¹³C and δ¹⁵N values than leaves. A framework for interpreting these results is introduced and evaluated. Samples identified as outdoor‐grown by δ¹³C were generally recorded as such by the Drug Enforcement Administration (DEA). DEA‐classified indoor‐grown samples had the most negative δ¹³C values, consistent with indoor cultivation, although many were also in the outdoor‐grown domain. δ¹⁵N indicated a wide range of fertilizers across the dataset. Samples seized at the single location suggested multiple sources. Northwest border δ¹³C values suggested indoor growth, whereas for the Mexican and Colombian samples they indicated outdoor growth.     

Subway Train‐Related Fatalities in New York City: Accident versus Suicide*

Abstract: We examined the characteristics of subway train‐related fatalities in New York City between Jan. 1, 2003 and May 31, 2007 in order to determine which factors are useful in differentiating accident from suicide. Subway train‐related deaths with homicide and undetermined manners also are included. During this period, there were 211 subway train‐related fatalities. The manners of death were: suicide (n = 111), accident (n = 76), undetermined (n = 20), and homicide (n = 4). The causes of death were blunt trauma (n = 206) and electrocution (n = 5). Torso transection and extremity amputation were more frequent in suicides. Antidepressant medications were more frequently detected in suicides, whereas cocaine and ethanol were more frequent in accidents. However, autopsy findings should be weighed in the context of the entire evaluation along with other circumstantial and investigative findings. In unwitnessed deaths where additional information is unavailable or discrepant, the most appropriate manner of death usually is undetermined.     

Time-lapse resistivity surveys over simulated clandestine graves

The aim of this study was to develop a better understanding of how electrical resistivity surveys can be used to locate clandestine graves. Resistivity surveys were conducted regularly over three simulated clandestine graves containing a pig cadaver, no cadaver and a pig cadaver wrapped in tarpaulin, respectively. Additionally, soil and groundwater samples were collected from two more simulated graves outside the survey area. The grave containing a pig cadaver was detectable from a low resistivity anomaly in the survey data. Groundwater data suggest that the resistivity anomaly associated with the surveyed pig grave was caused by a localised increase in groundwater conductivity. Wrapping a cadaver was found to initially change the resistivity response of a grave to a high resistivity anomaly. Resistivity surveys did not detect the disturbed soil in the grave that did not contain a cadaver. Although soil samples showed grave soil to be more porous than undisturbed soil, the lack of response from the grave that did not contain a cadaver suggests that disturbed soil was not responsible for the resistivity anomalies observed in this study. Resistivity surveys successfully detected all graves containing cadavers throughout the study, whilst also showing the potential to eliminate the need for mass excavation in a genuine search.     

Mixing it up: food mixers, design marks, and when similarity becomes confusion

While the High Court accepted that there was some similaritybetween Kenwood's new kMix mixer and the KitchenAid Artisanfood mixer (the ‘Artisan mixer’) manufactured anddistributed by Whirlpool, it rejected Whirlpool's claims fortrade mark infringement and passing off because such similaritywas insufficient to cause confusion in the mind of the averagedesign conscious consumer, or to cause detriment to the distinctivecharacter or repute of Whirlpool's mark.     

Defendant-juror similarity and mock joror judgments

It was hypothesized that joror-defendant similarity would lead to greater leniency toward a criminal defendant when the evidence against that defendant was weak or inconclusive; but when evidence was strong, it was expected that this relationship would be reversed. In Study 1, religious similarity was found to be simply and positively related to evaluation of the defendant and leniency, a relationship unaffected by the strength of evidence. This pattern of results was attributed to (a) insufficiently strong evidence against the defendant and (b) the lack of anticipated jury deliberation, problems addressed in Study 2. In that study, when evidence was strong against the defendant, juror-defendant racial similarity did increase the likelihood of conviction, but only when jurors anticipated being in the racial minority in their jury. Implications of the findings for psychological theory and for voir dire were discussed.The authors wish to thank Howard Klein and Jane Stanfel for their assistance in data collection and analysis in Experiment 2, and the Editor and two anonymous reviewers for their suggestions on an earlier draft.