Detection of latent bloodstains beneath painted surfaces using reflected infrared photography

Bloodstain evidence is a highly valued form of physical evidence commonly found at scenes involving violent crimes. However, painting over bloodstains will often conceal this type of evidence. There is limited research in the scientific literature that describes methods of detecting painted-over bloodstains. This project employed a modified digital single-lens reflex camera to investigate the effectiveness of infrared (IR) photography in detecting latent bloodstain evidence beneath a layer or multiple layers of paint. A qualitative evaluation was completed by comparing images taken of a series of samples using both IR and standard (visible light) photography. Further quantitative image analysis was used to verify the findings. Results from this project indicate that bloodstain evidence can be detected beneath up to six layers of paint using reflected IR; however, the results vary depending on the characteristics of the paint. This technique provides crime scene specialists with a new field method to assist in locating, visualizing, and documenting painted-over bloodstain evidence.     

The Janus‐Face of Negociation Democracy. The Effects of Consensus Democracy,Direct Democracy and Decentralization on State Intervention in Swiss Cantons

Dieser Beitrag analysiert die Varianzen der quantifizierbaren Staatstätigkeit in den 26 Schweizer Kantonen der 1980er und 1990er Jahre. Im Mittelpunkt der erklärenden Grssen stehen dabei Formen der Verhandlungsdemokratie, insbesondere der Konkordanz, dezentraler Entscheidungsstrukturen und direktdemokratischer Beteiligungsrechte. Wir zeigen, dass die Erweiterung des Konzeptes der Verhandlungsdemokratie auf weitere Staatsorgane neben der Regierung zur analytischen Unschärfe fhrt, da die verschiedenen Ausprägungen der politischen Machtteilung mit unterschiedlichen Wirkungen auf den Umfang des ffentlichen Sektors verbunden sind. Während die Konkordanz im Sinne der parteifrmigen Organisation politischer und sozialer Konflikte tendenziell die staatliche Intervention begnstigt, zgeln konstitutionelle Vetospieler die Staatstätigkeit, indem direktdemokratische Mitwirkung und dezentrale Machtteilung dem Staat Fesseln auf der Einnahmen‐und Ausgabenseite anlegen.     

Conciliatory whiteness: white farmers’ accommodations and responses to land reform in Matabeleland South,Zimbabwe

ABSTRACT

This article seeks to contribute to growing academic literature on land reform and whiteness in Zimbabwe, where there have been calls for nuance in the analysis of agrarian change. The research which underpins it explores differentiated responses to land reform on the part of a sample of white farmers (as well as A1 and A2 beneficiaries), in the environs of Matobo district, Matabeleland South, Zimbabwe. It characterises a range of responses on the part of white farmers – dropping out, pushing back, accommodating and adapting – and charts the various outcomes of these strategies. I further utilise the concept of subjectivity to reflect on these diverse responses and to disaggregate essentialised or homogenised understandings of whiteness. The article focuses on the small number of white farmers who retain a connection to the land and agrarian production in the study area and argues they embody aspects of a particular subjectivity. This conciliatory subjectivity is characterised by openness to reconciliation, rapprochement and partnership-making. Specifically, it is located along the following lines: (1) in contrast to the perceived ‘islands of privilege’ of some of their peers; (2) within a challenging context where they no longer occupy a hegemonic position; (3) wherein they are inclined or required to (re)form collaborations and alliances in the new dispensation; and (4) the subjectivity of these farmers could be said to be pre-occupied less with issues of identity and belonging, than with surviving and ‘becoming’ amidst the multi-faceted challenges of contemporary Zimbabwean rural agricultural endeavours and socio-political life.     

Verbal and Physical Aggression in Couples Where the Female Partner is Drinking Heavily

This study evaluated (i) frequencies of aggression in maritally distressed problem drinking (DP) women relative to controls, (ii) aggression, marital satisfaction, and partner drinking in predicting female drinking, and (iii) discrepant within-couple drinking in predicting marital distress. The sample included 27 DP women, 24 maritally distressed nonproblem drinking women (DNP women), and 24 women with neither problem (NDNP women). DP women reported frequencies of physical aggression similar to DNP women, but less male verbal aggression than DNP women. Predictors of female drinking were marital satisfaction and male drinking, but aggression did not predict female drinking. Female marital satisfaction was predicted by interspousal discrepancies in drinking after accounting for verbal aggression.     

Visual attention and expertise for forensic signature analysis

Eye tracking was used to measure visual attention of nine forensic document examiners (FDEs) and 12 control subjects on a blind signature comparison trial. Subjects evaluated 32 questioned signatures (16 genuine, eight disguised, and eight forged) which were compared, on screen, with four known signatures of the specimen provider while their eye movements, response times, and opinions were recorded. FDEs' opinions were significantly more accurate than controls, providing further evidence of FDE expertise. Both control and FDE subjects looked at signature features in a very similar way and the difference in the accuracy of their opinions can be accounted for by different cognitive processing of the visual information that they extract from the images. In a separate experiment the FDEs re-examined a reordered set of the same 32 questioned signatures. In this phase each signature was presented for only 100 msec to test if eye movements are relevant in forming opinions; performance significantly dropped, but not to chance levels indicating that the examination process comprises a combination of both global and local feature extraction strategies.     

Konstanz und Konkordanz. Die Stabilität kantonaler Regierungen im Vergleich

Die Instabilität kantonaler Regierungszusammensetzungen im Sinne wechselnder Parteienkoalitionen hat seit der Einführung der Volkswahl einen neuen Höhepunkt erreicht. Gleichzeitig finden sich in der Nachkriegszeit frappante Unterschiede zwischen den einzelnen Ständen, die sich gegen Ende des 20. Jahrhunderts noch akzentuiert haben. Der vorliegende Artikel versucht, die verschiedenen Determinanten zur Erklärung der unterschiedlichen parteipolitischen Regierungsstabilität in den "präsidentiellen" Konkordanzsystemen der Kantone theoretisch herzuleiten und empirisch zu überprüfen. Die empirischen Ergebnisse weisen darauf hin, dass die Ursachen für die unterschiedliche Stabilität der parteipolitischen Zusammensetzungen kantonaler Exekutiven nicht etwa mit dem Typ des Wahlsystems oder spezifischen Regierungsmerkmalen zusammenhängen, sondern vielmehr mit dem Grad elektoraler Kompetition und damit mit den Kooperationsstrategien der Regierungsparteien sowie – in weit schwächerer Form – mit dem Fragmentierungsgrad des Parteiensystems.     

Book reviews

KUL B. RAI, DAVID F. WALSH and PAUL J. BEST (eds), America in the 21st Century: Challenges and Opportunities in Foreign Policy (Prentice‐Hall, Englewood Cliffs, 1997), 259 pp., ISBN 0–13–570961‐X (pb)

BRIAN JENKINS and SPYROS A. SOFOS (eds), Nation and Identity in Contemporary Europe (Routledge, London, 1996), 294 pp.

WESLEY D. CHAPIN, Germany for the Germans? The Political Effects of International Migration (Greenwood Press, Westport, 1997), 173 pp., ISBN 0–313–30258–8 (hb)

JOHN REES, The Algebra of Revolution. The Dialectic and the Classical Marxist Tradition (Routledge, London, 1998), vi + 314 pp., ISBN 0–415–19876–3 (hb), 0–415–19877–1 (pb)

RANDY E. BARNETT, The Structure of Liberty: Justice and the Rule of Law (Clarendon Press, Oxford, 1998), 337 pp., ISBN 0–19–0829324–0 (hb)

J#AUURGEN HABERMAS, A Berlin Republic: Writings on Germany (Polity Press, Cambridge, 1998), 187 pp., ISBN 0–7456–2045–0 (pb)     

Adolescents' Intergroup Attributions: A Comparison of Two Social Identities

This study investigated the intergroup perceptions of 2 social groups. English adolescents aged 14–15 years were asked to make causal attributions for various positive and negative behaviors performed by members of an in-group and an out-group. In the first condition (n = 45), participants rated members of their own peer group and members of a peer group to which they did not belong. Participants in the second condition (n = 45) rated English adolescents and members of a national out-group (either France or Germany). Results showed that participants in both conditions reported perceptions that were biased towards the formation of a favorable in-group evaluation. However, the relationship between intergroup discrimination and identification with the in-group was in the expected direction for participants in the peer group condition only. This observation is explained in terms of the potential level of identity threat posed by the prevalent intergroup context.