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To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.forsciint.2008.12.018 Byline: Christoph Birngruber (a), Frank Ramsthaler (b), Marcel A. Verhoff (a) Keywords: Spectral imaging; Forensic hair examination; Hair color variation Abstract: Human hair is among the most common kind of evidence secured at crime scenes. Although DNA analysis through STR-typing is possible in principle, it is not very promising for telogenic hair or single hairs. For the mixed traces frequently found in practice, composed of different hair from an unknown number of individuals, mtDNA sequencing of each individual hair seems to be the only possible, even if technically elaborate, solution. If it were possible to pool all hair belonging to an individual prior to DNA analysis, then this effort could not only be reduced, but the number of hair for an STR-approach could also be increased. Although it is possible to examine hair microscopically, this method must be considered unsuitable for pooling, since the results depend strongly on examiner experience, and the hair cannot always be correctly attributed to an individual. The goal of this study was to develop an objective non-DNA-contaminative pooling method for hair. To this end, the efficacy of spectral imaging as a method of obtaining information -- beyond that obtained from a purely microscopic and morphological approach -- for the identification of individuals was investigated. Three hairs each from 25 test persons (female: 18; male: 7) were examined with a SpectraCube.sup.[R]-System and a light microscope. Six spectra were calculated for each hair, and the hairs from each individual were not only compared to each other, but also to those of the other individuals. From a forensic vantage, the examination showed, in particular, that individuals, whose hair could not be distinguished on the basis of morphology, could also not be accurately distinguished with the SpectraCube.sup.[R]. The intra-individual differences were, in part, greater than the inter-individual differences. Altogether, the study shows that a person's hair color, as perceived, is composed of many naturally different, individual colors. Author Affiliation: (a) Department of Legal Medicine, University of GieAen, Frankfurter StraAe 58, D-35392 GieAen, Germany (b) Department of Legal Medicine, University of Frankfurt/Main, Frankfurt/Main, Germany Article History: Received 23 September 2008; Revised 12 December 2008; Accepted 19 December 2008

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Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archiv für Kriminologie is the property of Schmidt-Roemhild Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Abstract: With the goal of obtaining additional practically applicable methods for estimating the PMI of skeletal remains, 39 samples of human and 5 samples of domestic animal long bones with known PMI (PMI=1 to approximately 2000 years) were tested with two established methods (UV-fluorescence of a freshly sawn cross-section and the luminol test) and two screening tests (Hexagon-OBTI® test and Combur® test) that were being tried out in this context for the first time. The hypothesis underlying this experiment was the supposition that the PMI-related chemiluminescence of the luminol reaction for bone is based on the presence of persisting hemin from hemoglobin molecules in bone. Our results showed that lack of luminescence and reduced UV-fluorescence were more meaningful results for estimating PMI and excluding forensic relevance than a positive luminol reaction or strong UV-fluorescence, as both of the latter findings revealed the limitations of these methods in this particular context. Particularly for cases showing a positive luminol reaction, the use of additional absolute dating methods may be indicated. Against our expectations, both the Combur® test strips and the Hexagon-OBTI® test, which were both devised to demonstrate blood, delivered negative results for all samples. They are thus not suitable for estimating the PMI of skeletal remains. Future research will be necessary to elucidate whether the negative results obtained for these tests may be due to the poor solubility of potentially present hemoglobin or hemoglobin breakdown products in the Tris buffer used in this experiment. [Copyright &y& Elsevier]

After the discovery of skeletonized human remains, the estimation of stature is an important element of the so-called "biological profile". Typically, long bone lengths are used in regression formulas. If long bones are not available, predictions of stature cannot be made. Human skulls are often the subject of forensic osteological examination, sometimes even detached. Therefore, it seems reasonable to search for skull measurements that have a sufficiently good correlation to stature. The aim of the study presented was to measure odonto-stomatological parameters using post-mortem CT data to check whether the esti- mation of stature was possible on this basis. Three classic tooth dimensions (MD, BL, ZL), two diagonal tooth dimensions (MBDL, DBML) first described by Lund and Mörnstad in 1999, two tooth dimensions defined for the first time in this study (MKDO, DKMO), the mesiodistal index (MDS) and also the palatal arch dimensions (arch length, arch width, molar length and dental length) - each at maxilla and mandible - were digitally measured on a total of 799 teeth of 48 virtual 3-D-reconstructed skulls (33 males and 15 females). For most of the aforementioned measurements no statistically significant relation to stature was found. There were positive correlations by Pearson at a significance level of 99 % (2-sided) at three measurements: ZL 15, MKDO 14 and MKDO 15. Positive correlations by Pearson at a significance level of 95 % (2-sided) could be determined for eight measurements, but an applicable regression formula could not be calculated for any of the parameters. Despite a statistical correlation of a few teeth parameters with body length, they must be considered unsuitable for estimating stature.

$Human skulls frequently represent the only skeletal remains of an unidentified corpse available for forensic osteological examination. Skulls are very useful in reliably determining sex and also yield fairly good clues to an individual's age and ancestry. To date, however, a sufficiently accurate correlation between skull measurements and stature could not be found. In contrast, the results of a study by Rao et al. (2009) seemed to be promising, by finding a good correlation between the length of the coronal and sagittal sutures and stature in a male Indian population. In an attempt to verify the transferability of their results to a Central European population, the authors measured the length of the sagittal and coronal sutures with a tape measure along with body height in the course of 117 autopsies performed at the Institute of Forensic Medicine at the University of Giessen during 2009 and 2010. The age of the individuals measured ranged from 15 to 96 years (mean value 52.8, median 51 years). Of these individuals, 82 were male and 35 were female. The length of the sagittal suture with respect to body length yielded a correlation coefficient of only r = 0.045 (p = 0.617) in the regression analysis. Similar results were found for the coronal suture: In this case the correlation coefficient was r = 0.015. With an assumed maximum permissible probability of error of α = 0.05, none of the performed regression analyses were found to be statistically significant. As expected, our results suggest that neither the length of the sagittal nor the length of the coronal suture is suitable for a forensic estimation of stature for Central European individuals.

Forensic photographs not only need to be unaltered and authentic and capture context-relevant images, along with certain minimum requirements for image sharpness and information density, but color accuracy also plays an important role, for instance, in the assessment of injuries or taphonomic stages, or in the identification and evaluation of traces from photos. The perception of color not only varies subjectively from person to person, but as a discrete property of an image, color in digital photos is also to a considerable extent influenced by technical factors such as lighting, acquisition settings, camera, and output medium (print, monitor). For these reasons, consistent color accuracy has so far been limited in digital photography. Because images usually contain a wealth of color information, especially for complex or composite colors or shades of color, and the wavelength-dependent sensitivity to factors such as light and shadow may vary between cameras, the usefulness of issuing general recommendations for camera capture settings is limited. Our results indicate that true image colors can best and most realistically be captured with the SpyderCheckr technical calibration tool for digital cameras tested in this study. Apart from aspects such as the simplicity and quickness of the calibration procedure, a further advantage of the tool is that the results are independent of the camera used and can also be used for the color management of output devices such as monitors and printers. The SpyderCheckr color-code patches allow true colors to be captured more realistically than with a manual white balance tool or an automatic flash. We therefore recommend that the use of a color management tool should be considered for the acquisition of all images that demand high true color accuracy (in particular in the setting of injury documentation).

The number of tattooed people in Germany has constantly grown over the past few years. The present study deals with the question if this social trend can be seen in foren- sic autopsy cases as well. In a retrospective study, forensic autopsy cases of two periods (1990-1994 and 2010-2014) have been reviewed and statistically analyzed. Comparison of the two periods revealed a significant increase in tattooed individuals, especially in the female subgroup. Between 2010 and 2014, 14.2 % of the deceased showed tattoos. There are significant differences in the frequency and localization of tattoos dependent on age and sex. About 50 % of the tattooed deceased showed tattoos on body sites that are visible for other persons in everyday life. The resulting value of tattoos for the purpose of identifying unknown bodies is discussed and illustrated.