Inter-observer error for area of origin analysis using FARO Zone 3D

In a bloodletting incident, the area of origin (AO) of an impact bloodstain pattern is crucial when establishing the sequence of events. The use of laser scanners and other three-dimensional (3D) technologies to document and analyse bloodstains have been the subject of previous papers, especially where AO analysis is concerned. FARO Zone 3D (FZ3D) is a relatively new software programme that can be used for bloodstain AO analysis. FZ3D requires a greater understanding of inter-observer errors associated with AO. This study looked at the inter-observer variation between 21 examiners when repeatedly calculating the AO six times for a single impact pattern on a plain white wall. An impact rig which consisted of a spring tension arm was positioned and fixed 45 cm from the X wall (right wall), and 45 cm from the Y wall (left wall). This experimental design resembles an impact blow for a bloodletting event. The AO was unknown to all examiners, making it a blind study. The collected results were documented in a Microsoft Excel datasheet and later analysed. From previous literature, a 30 cm acceptable allowance was utilised for AO analysis; however, there is currently no accepted standard error for this type of analysis. The overall total 3D mean error for all examiners was 5.62 cm. The maximum error for any one impact analysis was 24.27 cm. The variation of the data, which was collected by all examiners, was documented as X = 1.14 cm, Y = 1.24 cm, Z = 1.68 cm, and the total 3D error = 2.28 cm. The total 3D error for any one examiner and the variance between examiners did not exceed the 30 cm acceptable allowance utilised in previous literature.     

Financial performance studies of university spin-off companies (USOs) in the West Midlands

The Journal of Technology Transfer - Doubts remain over the true impact of university spin-offs (USOs), particularly those created outside elite research universities. This paper examines the...     

“I have always been so afraid”: Fearsome Encounters in Unni Lindell’s Rødhette

Norwegian crime writer Unni Lindell’s novel Rødhette [Red Riding Hood] (Oslo: Aschehoug & Co, 2004/2010) is a narrative about a woman whose feeling of safety transforms into a fear of violation, and how her defence against this fear takes the form of systematic violence. The novel is a rewriting of the traditional tale of “Little Red Riding Hood” and is a comment on the patriarchal premises of the most widely known version of this folktale. In the article, I discuss the representation of the female murderer as being in the grip of an affective economy based on the fear of male violence, represented in the novel by the metaphor of the “wolf”, and how fear grows into a comprehensive, moral and pragmatic, murderous orientation towards the world after an experience of violence. Theoretically, I draw on affect theory and particularly Sara Ahmed’s ideas about the affective politics of fear (The cultural politics of emotion. Edinburgh: Edinburgh University Press, 2014) and how this fear turns into a significant qualifier in encounters with people who are experienced as strangers (Strange encounters: Embodied others in post-coloniality. London: Routledge, 2000). Fear is treated in Lindell’s novel as a psychological constriction and a tool for the construction of agency, through which the mechanisms of othering and violence are explored.     

N-cyanomethyl-N-methyl-1-(3',4'-methylenedioxyphenyl)-2-propylamine: an MDMA manufacturing by-product

This paper describes the structural elucidation of a compound produced during the synthesis of 3,4-methylenedioxymethylamphetamine (MDMA) via the reductive amination of 3,4-methylenedioxyphenyl-2-propanone (3,4-MDP-2-P) with methylamine and sodium cyanoborohydride. The compound was isolated from MDMA by column chromatography, proton and carbon nuclear magnetic resonance spectroscopy, LC/mass spectrometry, and total synthesis were used to identify the compound as N-cyanomethyl-N-methyl-1-(3',4'-methylenedioxyphenyl)-2-propylamine. This compound has been identified as a potential synthetic route marker for the reductive amination of 3,4-MDP-2-P with methylamine and sodium cyanoborohydride and as such it should prove valuable to forensic scientists engaged in profiling illicit drugs. Profiling MDMA can provide useful information to law enforcement agencies relating to synthetic route, precursor chemicals and reagents employed and may be used for comparative analyses of different drug seizures. This paper also describes the structural elucidation of the analogous methylamphetamine synthetic route marker compound, N-cyanomethyl-N-methyl-1-phenyl-2-propylamine, produced during the reductive amination of phenyl-2-propanone using methylamine and sodium cyanoborohydride.     

Functional mental capacity is not independent of the severity of psychosis

BACKGROUND: Function-specific mental capacities are the legal criteria for competence. These are regarded as superior to clinical assessments of mental state and general function. AIMS: To determine whether tests of fitness to plead and capacity to consent are independent of each other and independent of mental state and global function in psychosis. METHOD: The MacCAT-T and MacCAT-FP, PANSS and GAF were administered to 102 compulsorily detained forensic patients with psychosis. Criteria for incompetence were inability to express a preference concerning treatment, and independent rating as unfit to plead. RESULTS: MacCAT-T, MacCAT-FP totals and sub-scales correlated with each other and with PANSS and GAF. Those independently rated unfit to plead or who were incapable of making a treatment choice scored significantly worse on all rating scales. No test had satisfactory sensitivity or specificity. CONCLUSIONS: Legal definitions of mind and of functional capacity offer a basis for structured clinical judgement regarding decision-making capacity. However, function-specific measures of understanding, reasoning and appreciation generate much the same results as measures of mental state and global functioning.