Assessing the impact of corrosive acids on human bone integrity in forensic context.

Dissolving bodies is a contemporary method of disposing of human remains and has been practiced throughout the years. This research article discussed the impact of readily available corrosive chemicals, such as Hydrochloric acid (HCl), Sulfuric acid (H2SO4), and Expelz™ toilet cleaner, on human bone. Unfortunately, the existing literature on this subject is scarce, with only a few studies conducted on human bones. To address this gap, we conducted an experimental analysis using human sternum bone fragments. These samples were subjected to immersion in different acids, namely HCl and H2SO4, at two concentrations (10% and 37%), and Expelz™ toilet cleaner. This research aims to describe the impact of toilet cleaner, sulphuric acid, and hydrochloric acid on bone tissue deterioration at various time intervals. Further, the morphological alterations weight loss, and cytological analysis of bone tissue residue with various acid concentrations and immersion times (3.5, 9, 24, 36, 48, 60, and 72 h) were analyzed. Among the chemicals examined, it is evident that 37% hydrochloric acid (HCl) and sulfuric acid (H2SO4), regardless of refreshment, exhibit the highest reactivity, resulting in the complete decomposition of hard tissue within a few hours. In contrast, the behaviour of 10% H2SO4 reveals a more intricate degradation process characterized by fluctuations in weight loss. These distinct reactivity profiles under different conditions are crucial in understanding the potential for rapid weight loss, signifying high reactivity and more gradual weight loss, indicating a faster decomposition rate. Notably, refreshment of the solution enhanced the reactivity of both HCl and H2SO4.

Soil as a tool of revelation in forensic science: a review.

Soil contains diverse and complex natural elements having physical, chemical, mineralogical and biological components. Soil being a transferable physical component (it can be transferred from one location to another with the help of shoes, tires, clothes, tools etc.), acts as a tool of forensic investigation to correlate a specific crime scene with criminal suspects. A variety of techniques and combinations of methods can be used to discriminate soil from different geographical locations. The present review highlights various analytical techniques (ATR-FTIR, pyGC-MS, SEM-EDX, ICP-MS/OES and XRD) for soil analysis (colour comparison, texture and particle size determination, density gradient methods and organic matter estimation) and discusses some of the famous cases solved with soil trace evidence. The objective of the present study is to provide an overview of the importance of soil as physical evidence in forensic science based on literature analysis that will help forensic scientists and researchers to select appropriate methods to discriminate different soil samples. This article reviews various analytical techniques used to differentiate soils and provides compiled information regarding soil as trace evidence in order to help academicians, researchers and forensic soil scientists.

A data-based study in support of Blackbuck related cases from Haryana.

Haryana State (located in the northern part of India), is lacking in natural forest, but it has rich biodiversity of some wild animals, especially the Blackbuck antelopes. The maximum population of Blackbucks in the state is living in open cultivated fields. Blackbucks were once found abundantly throughout Haryana, but now they are limited to the south-west part of the state, driven almost to extinction in the rest of Haryana, mainly because of habitat destruction and wildlife crime. This data report is an outcome of six years (January 2012-September 2017), based on assessment of records in terms of location, year and month wise frequency of death and rescued cases related to Blackbuck reported, as registered by the State Wildlife Department. It is envisioned that this data report will provide appropriate information for the conservationist to plan future conservation strategy for Blackbucks in Haryana.

Dental radiology: an adjunctive aid in age estimation

The concept of using radiographic methods for age estimation has kindled so much interest in the field of forensic dentistry in past few decades. Aim and Objectives: To evaluate the different dental radiographic methods for age estimation and their significance in the field of forensic dentistry. Methodology:- 64articles were collected after an extensive literature review. Literature survey of these articles was done.Conclusion:-Radiographic methods play an indispensible role in age estimation specifically in living persons because of their non-invasive and non-destructive nature. This review paper focus on different radiographic methods and new developments available for radiological dental age estimation and their effective aid in identification and crime investigation.