Background As many other European countries, France has to deal with a growing number of migrants including some who contend age minority entitling them to benefits and privileges reserved for children within the context of legal proceedings. In case of doubtful minority, medical examinations may be carried out to assess skeletal and dental age. Our objective was to analyse the age assessments regarding individuals of doubtful minority assertion at the Medico-legal Institute of the University Hospital of Montpellier since 2018. Methods Expert reports of forensic age assessments performed during the 2018–2021 period were reviewed. Demographic data and results from medical and radiological investigations based on AGFAD recommendations were recorded in each case. When available, conclusions of judicial investigations about the individuals’ actual age were collected. Results A total of 265 reports were compiled. Age assessments predominantly concerned males (97.7%) and the main reported country of origin was sub-Saharan Africa (80.4%). The mean reported age was 16.3 ± 0.8 years. The individual’s stated age was compatible with the age assessment in 31 cases (11.7%), while expert reports concluded that the age of majority had been reached in 131 cases (49.4%). In cases of discrepancies, the average difference between the stated and the assessed lowest possible age (= assessed minimum age) was 2.7 ± 2.3 years and 6.9 ± 3.8 years between the stated and the most probable age. Age assessments could be compared with actual ages determined by court proceedings in 27 cases, with established ages being systematically higher than the assessed minimum ages (mean difference = 4.4 ± 4.0 years). The difference between actual and stated ages ranged from 1.8 up to 18.9 years (mean difference = 6.4 ± 4.0 years). The used protocol never led to any age overestimation in this population. Conclusion Our study reinforces the relevance of AGFAD recommendations for forensic age assessment and calls for the harmonization of practices based on this methodology in the European countries.
Age at death estimation is a major part of forensic anthropology, but is often poor in the latter decades of life and should benefit from specific population standards. The aim of this study was to test a virtual reference sample with a uniform age distribution in order to improve the accuracy of age estimation for individuals over 40 years of age. We retrospectively built a random virtual reference sample of pubic symphyses from 1100 clinical cases using computed tomography at two French hospitals; this was compared with a test sample (pubic symphyses from 75 corpses undergoing post-mortem computed tomography at a French forensic department) and with the sample originally used in the Suchey-Brooks (SB) system. Inaccuracy and bias were calculated and the proportions of cases in which the real age fell within the estimated age ± 1 standard deviation were calculated. Compared to using the SB sample, using our French sample resulted in a lower inaccuracy for males over 55 years and bias showed that that for males aged 56 to 70 years were less underestimated. Compared to using the SB sample, using our French sample resulted in a lower inaccuracy for females over 70 years and bias showed that that for females aged 56 and older were less underestimated. This study presents a large data set of pubic symphyseal phases from a French virtual sample that allows for improving age estimation accuracy at death, particularly for individuals over 40 years. This kind of material can be useful to improve the age estimation accuracy in a specific region. However, the reliability remains poor and the variability of pubic symphysis morphology related to bone degeneration seems to be an unavoidable limit of the method.
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