Differences in perceived seriousness of overt and covert road traffic offenses

Attitudes towards the perceived seriousness of road traffic offenses were studied as a function of the age and sex of drivers. Ratings of seriousness of 31 verbalized offenses were analyzed using detection theory parameters to study sensitivity and bias effects in the discrimination of “overt” and “covert” offenses. Overt offenses were defined as those which are immediately obvious to a casual observer, such as jumping red traffic lights. Covert offenses are those not so easily observable, such as driving a defective vehicle. The latter are inherently more hazardous, because they do not allow other road users to adopt appropriate margins of safety. The results indicated that young male drivers were relatively insensitive in discriminating between overt and covert offenses compared with other subgroups of drivers tested. Instructions which directed drivers to judge the offenses from the standpoints of personal responsibility, or involvement in, or the social consequences of, any accidental outcome, increased sensitivity relative to no such instructions being given. Analysis of the rating data itself showed that, overall, overtly offensive driving was considered less serious than covertly offensive driving. This was particularly the case for male and younger drivers. Possible implications of the results for legal sanctioning and other accident countermeasures are discussed.     

Urbanization and rural labor supply: A historical study of Bogotá, Colombia since 1920

The author examines how social and economic changes in rural Colombia have affected urban growth in Bogota in the 1920s and 1930s with growth after 1958. Data from both official statistics and published studies are used.     

Book reviews

ACHIN VANAIK, The Furies of Indian Communalism: Religion, Modernity and Secularization (Verso, London, 1997), 374 pp., ISBN 1–85984–016–7

EDWARD REISS, Marx: a Clear Guide (Pluto Press, London & Chicago, 1997), 180 pp., ISBN 0–7453–1014–1 (pb)

ERNST FISCHER, HOW to Read Karl Marx (Monthly Review Press, New York, 1997), 192 pp., ISBN 0–85345–974–6 (pb)

CAROLINE KENNEDY‐PIPE, The Origins of the Present Troubles in Northern Ireland (Longman, Harlow, 1997), 204 pp., ISBN 0–582–1073–9

DUNCAN WATTS, Political Communication Today (Manchester University Press, Manchester and New York, 1997), 228 pp., ISBN 0–7190–4792–7 (hb), 0–7190–4793–5 (pb)

JACK HAYWARD (ed), Elitism, Populism and European Politics (Clarendon Press, Oxford, 1996), 257 pp., ISBN 0–19–828035–1

JOHN GRAY and DAVID WILLETTS, IS Conservatism Dead? (Profile Books, London, 1997), x + 186 pp., ISBN 1–86197–042–0     

Form follows function: Applying photographic content analysis to forensic firearm identification

Drawing forensic conclusions from an image or a video is known as “photographic content analysis.” It involves the analysis of an image, as well as objects, actions, and events depicted in images or video. In recent years, photographic depictions of objects suspected as illegal firearms have substantially increased, appearing on CCTV surveillance footage, captured by mobile phones and shared on social media. However, the law in Israel states that a person can be charged with illegally possessing a firearm only if it can be proven that the object is capable of shooting with lethal bullet energy. This becomes more challenging in cases where the firearm was not physically seized, and the evidence exclusively consists of images and video. In this study, photographic content analysis was applied to images and video where objects suspected as commercial or improvised firearms had been depicted. An image and event sequence reconstruction video databases of both firearms and replicas were created in order to better define firearm-specific functional morphological features. We demonstrate that it is possible to classify an object as a firearm by analyzing the functional, and not only the esthetic, morphology in images and video. It is also shown that event sequence reconstruction in video may be used to infer that an object suspected as a firearm has the capacity to shoot by confirming the occurrence of a shooting act or shooting process. Thus, photographic content analysis may be used to forensically establish that an object depicted in an image or a video is a firearm by ruling out other known scenarios, and without physically seizing it.