Stubs Versus Swabs? A Comparison of Gunshot Residue Collection Techniques

Abstract: The collection efficiency of two widely used gunshot residue (GSR) collection techniques—carbon‐coated adhesive stubs and alcohol swabs—has been compared by counting the number of characteristic GSR particles collected from the firing hand of a shooter after firing one round. Samples were analyzed with both scanning electron microscopy and energy dispersive X‐rays by an experienced GSR analyst, and the number of particles on each sample containing Pb, Ba, and Sb counted. The adhesive stubs showed a greater collection efficiency as all 24 samples gave positive results for GSR particles whereas the swabs gave only positive results for half of the 24 samples. Results showed a statistically significant collection efficiency for the stub collection method and likely reasons for this are considered.     

Municipal ordinances and street prostitution in Spain

Beginning with the civic ordinance enacted in Barcelona in 2005, in the first decade of the twenty-first century, most big and medium-sized cities in Spain enacted municipal ordinances prohibiting various types of uncivil behaviour in the street. The stated goal of all these municipal regulations was to promote urban safety and the civic use of public space. However, in some cases these prohibitions have gone beyond this goal and had deeper, at times even contrary, effects on some of the activities they are intended to regulate. An analysis of the effects of banning street prostitution through municipal ordinances in Spain shows not only that the trade of sexual services in the street has not disappeared, but also that the conditions of police control in which street sex workers must operate have worsened. The lack of effectiveness of these regulations to discourage sex workers from offering their services in the street may explain the recent change in municipal policy attitude towards this issue, which is shifting from a soft prohibitionist approach to an abolitionist one. At the national level, although the recently passed Citizen Safety Act seems to take an abolitionist approach to this matter, materially speaking it is very close to prohibitionist schemes for dealing with street prostitution.     

Performance characteristics of the Cozart RapiScan Oral Fluid Drug Testing System for opiates in comparison to ELISA and GC/MS following controlled codeine administration

Oral fluid is an interesting alternative matrix for drug testing in many environments, including law enforcement, workplace drug testing, and drug treatment facilities. Performance characteristics of the FDA-cleared, qualitative, Cozart RapiScan Opiate Oral Fluid Drug Testing System (Opiate Cozart RapiScan System or Opiate CRS) were compared to the semi-quantitative Cozart Microplate EIA Opiate Oral Fluid Kit (Opiate ELISA) and to gas chromatography/mass spectrometry (GC/MS). The following oral fluid opiate cutoffs were evaluated: the GC/MS limit of quantification (LOQ) of 2.5 mg/l; 15 microg/l currently used for oral fluid testing in the United Kingdom (UK); 30 microg/l (Opiate CRS cutoff); and 40 microg/l, the proposed Substance Abuse and Mental Health Services Administration (SAMHSA) cutoff. Subjects provided informed consent to participate in this IRB-approved research and resided on the closed research ward throughout the study. Three oral codeine doses of 60 mg/70 kg were administered over a 7-day period. After a 3-week break, subjects received three doses of 120 mg/70 kg within 7 days. Oral fluid specimens (N = 1273) were analyzed for codeine (COD), norcodeine (NCOD), morphine (MOR) and normorphine (NMOR) by GC/MS with an LOQ of 2.5 microg/l for all analytes. MOR and NMOR were not detected in any sample; 26.5% of the specimens were positive for COD and 13.7% for NCOD. Opiate CRS uses a preset, qualitative cutoff of 10 microg/l; this is equivalent to 30 microg/l in undiluted oral fluid as the oral fluid collection process involves a 1:3 dilution with buffer. Sensitivity, specificity, and efficiency of Opiate CRS compared to Opiate ELISA were 98.6, 98.1, and 98.2% at a 30 microg/l cutoff and 99.0, 96.2, and 96.6% at a 40 microg/l cutoff. Compared to the much lower GC/MS LOQ of 2.5 microg/l, sensitivity, specificity and efficiency were 66.8, 99.3 and 90.7%. Increasing the GC/MS cutoff to the current UK level yielded performance characteristics of 81.5% (sensitivity), 99.3% (specificity), and 95.4% (efficiency). Using a GC/MS cutoff identical to the preset Opiate CRS cutoff yielded sensitivity, specificity, and efficiency of 88.5, 99.2, and 97.5%, respectively. At the proposed SAMSHA confirmation cutoff of 40 microg/l, sensitivity increased with little change in specificity and efficiency (91.3% sensitivity, 98.9% specificity, and 97.5% efficiency). Oral fluid is a suitable matrix for detecting drugs of abuse. Opiate CRS, with a 30 microg/l cutoff, is sufficiently sensitive, specific and efficient for oral fluid opiate analysis, performing similarly to Opiate ELISA at the same cutoff, and having performance characteristics >91% when compared to GC/MS at the proposed SAMHSA cutoff.     

How Japan Can Contribute to a Peaceful World

This article discusses Japan's contribution to world peace both in the past and in the future. Japan's domestic, historical, and strategic circumstances shaped its concept of comprehensive security focused on international economic cooperation since the 1970s. Three decades of constructive relations with neighbors, including reconciliation with Southeast Asia built a strong foundation for Japan's new security role, one driven by new domestic and external imperatives. The article also documents the evolution of Japan's security policy and role in international peacekeeping, and concludes by arguing that Japan–ASEAN partnership is a key component of Japan's new security role, including permanent membership in the United Nations Security Council. In developing this new role, it is critically important that Japan engages its neighbors in ASEAN (and elsewhere) to gain their support for this new role.     

Lifetime and six-month prevalence of psychiatric disorders among sentenced female offenders

The authors determined the six-month and lifetime prevalence of psychiatric disorders among 100 consecutively admitted female offenders to a prison, using Diagnostic Interview Schedule (DIS Version III) and found high prevalence rates of schizophrenia, major depression, substance use disorders, psychosexual dysfunction, and antisocial personality disorders. The prevalence rates of these disorders were significantly higher than those of the general population. The authors note the implications of their findings for treatment of women within the correctional system.     

Determination of several psychiatric drugs in whole blood using capillary gas-liquid chromatography with nitrogen phosphorus detection: comparison of two solid phase extraction procedures

A simple and reliable gas chromatographic method with nitrogen-phosphorus detection without derivatization was developed for the detection of several psychiatric drugs in whole blood as part of systematic toxicological analyses (STA). Drugs included mirtazapine, chlorpromazine, methotrimeprazine (levomepromazine), clothiapine, olanzapine, clozapine, haloperidol, and thioridazine. All drugs were studied at concentrations of 100-2,000 microg/L, except haloperidol that was studied at concentrations of 400-8,000 microg/L. In order to select the best blood purification procedure and therefore increase the signal to noise ratio we have compared two solid-phase extraction (SPE) columns, Chem Elut and Bond Elut Certify, for their recovery, precision, sensitivity and matrix purification efficiency. Recoveries for these drugs using Chem Elut columns at 500 and 2,000 microg/L (2,000 and 8,000 microg/L for haloperidol) were in the range 21-65%, with intra-assay and inter-assay precisions of less than 17% and 19%, respectively. Limits of detection (LODs) and limits of quantitation (LOQs) for mirtazapine, chlorpromazine, methotrimeprazine, clothiapine, olanzapine, clozapine, and thioridazine ranged from 62 to 161 microg/L and from 205 to 531 microg/L, respectively. LOD and LOQ for haloperidol were 442 and 1,458 microg/L, respectively. Recoveries of these compounds using Bond Elut Certify columns at 500 and 2,000 microg/L (2,000 and 8,000 microg/L for haloperidol) were in the range 44-97%, with intra-assay and inter-assay precisions of less than 7% and 14%, respectively. LODs and LOQs for mirtazapine, chlorpromazine, methotrimeprazine, clothiapine, olanzapine, clozapine, and thioridazine ranged from 37 to 66 microg/L and from 122 to 218 microg/L, respectively. LOD and LOQ for haloperidol were 156 and 515 microg/L, respectively. Linearity was observed in the studied range for all compounds with r(2) values of >0.999. The use of the mixed-mode bonded-silica Bond Elut Certify columns showed advantages comparing with Chem Elut columns for the screening of these psychotropic agents such as higher recoveries, cleaner extracts, better sensitivity, better precision and less solvent consumption and subsequent disposal.     

Detection of malingering in competency to stand trial evaluations

A simulation design with multiple contrast groups was used to test the effectiveness of two instruments, the Structured Interview of Reported Symptoms (SIRS) and the Georgia Court Competency Test—Mississippi State Hospital (GCCT-MSH) in detecting malingering of competency to stand trial. Thirty simulators were compared with 23 incompetent defendants, 25 competent defendants, 30 offender controls, and 7 suspected malingerers on both instruments. Results revealed that the simulators and suspected malingerers scored significantly higher on all of the SIRS primary scales and significantly lower on the GCCT-MSH than the three comparison groups. The SIRS had an overall hit rate of 97.8% using three or more primary scales as the criterion for malingering. Information concerning the simulator's strategies of deception is presented.