scholarly journals Geomatic techniques in forensic science: A review

2021 ◽  
Author(s):  
Victoria Berezowski ◽  
Xanthé Mallett ◽  
Ian Moffat

The purpose of this review paper is to highlight various geomatic techniques that crime scene reconstructionists or forensic practitioners can use to document different kinds of scenes, highlighting the advantages, disadvantages, and when best to use each technology. This paper explores geomatic techniques such as a total station, photogrammetry, laser scanners and structured light scanners and how they can be used to reconstruct crime scenes. The goal of this paper is not to discredit manual methods, as they are long standing and reliable, but instead to shed light on alternative methods that may produce equally or more accurate results with a more visually appealing final product. It is important for law enforcement and forensic professionals to understand the advantages and disadvantages of each technique, knowing when certain techniques should be used (and when they should not), and being able to revert to traditional methods if required.

2020 ◽  
Vol 9 (3) ◽  
pp. 1427-1443

Nanotechnology is an escalating branch whose feelers are mesmerizing nearly every field of science. It is the evolving field in forensic science, the advancement of emergent techniques of nanoparticles being unified with latent fingerprinting. The size of nanomaterials made them unique and have adjustable mechanical, electrical, and optical properties. At the crime scene, the prints that are left behind are generally latent (invisible) fingerprints. The Current review paper encompasses the synthesis of nanoparticles from conventional and advances synthetic pathways. Their applications, with and without modifications and their impacts on the enhancement of latent fingerprints, have also been discussed.


2020 ◽  
Vol V (II) ◽  
pp. 504-515
Author(s):  
Danish Bashir Mangi ◽  
Raana Khan ◽  
Shabana Kausar Jatoi

The study was conducted specifically to examine the role of forensic experts and Sindh police in investigating various crimes in the Karachi and Hyderabad areas. Forensic science can use technical expertise to detect, identify and prosecute criminals. In Pakistan, the application and understanding of forensic science in law enforcement agencies is increasing. This research has been analyzed with the help of qualitative research methodology. When forensic experts were asked if forensic evidence in court is a comprehensive defense, it was found that about 93.3% has agreed on it, while 6.7% denied it. When police participants were asked if modern forensic techniques could give immediate results in any case, 58.8% agreed, while 41.2% refused. This signifies that 58.8% of police respondents have less forensic knowledge and acquaintance. The biggest obstacles are lack of funds and lack of trained personnel, equipment and laboratories. The future of forensic science in Sindh will depend on overcoming the barriers and strengthening capacity building and improvement.


Author(s):  
Anton Koshelev ◽  
Ekaterina Rusakova

A significant leap in the development of information technology over the past twenty years has made the global legal community respond to new challenges that have come along with the progress in the digital environment. Together with the convenience of using electronic resources, society has developed a need for a simple and understandable legislative regulation of legal relations arising from the use of computer information technologies and various products of electronic digital activity in order to protect their interests potentially. The concept and types of electronic evidence in civil proceedings in different countries have different meanings. Meanwhile, the regulations of their procedural admissibility and applicability differ. The common thing is the tendency towards an increase in the use of electronic information carriers in court proceedings, increasing importance for establishing specific facts, and the decisive evidentiary role in making decisions by the court. India became one of the first countries to realize the growing level of implementation of Internet technologies, electronic digital storage media, and computer dominance in society and the state's daily life [1] (Artemyeva, Y.A. et al.). The consequence of this understanding was the timely development and implementation of the substantive and procedural bases in evidence law for practical, understandable, and convenient use of electronic evidence in civil proceedings. The article examines the types and procedural status of electronic evidence and analyzes the current legislation and law enforcement practice in the admissibility and application of electronic evidence in civil proceedings in India. The study identifies the existing system of electronic evidence in the legal field of India, the determination of the advantages and disadvantages in the gathering, presentation, research, and evaluation of electronic evidence by the court in civil proceedings, as well as the identification of the procedural order for their provision. The researchers have identified the following tasks to achieve the goals: • to define and research the legislation of India governing the concept, types and procedural order of applicability and admissibility of electronic evidence in civil proceedings in India; • to develop a particular procedural order for the effective use of the institution of electronic evidence in civil litigation in India; • to identify the current trends in the gathering, presentation, research, and evaluation of electronic evidence in India's courts, based on the established judicial practice study. The research methodology is based on general theoretical and scientific methods of cognition, including abstraction and specification, analysis and synthesis, modeling and comparison, and systemic, logical, and functional analyzes. The scientific novelty of the research consists of a comprehensive study of the instruments of legal regulation of the institution of electronic evidence in India's legal field, including regulatory legal acts and judicial precedents, and a consideration of the possibility of applying Indian approaches in the jurisdictions of other countries. The analysis of legislation and jurisprudence regarding electronic evidence in India's civil proceedings was carried out using the synergistic principle of object study, statistical-sequential analysis, and empirical research method. This study's results can be used in lawmaking to develop and improve regulations regarding the procedural status and use of electronic evidence in civil litigation in any country. The reference, citation, and use of this article's conclusions and materials are permissible when conducting lectures and seminars on civil procedure and private international law, research activities, law enforcement practice, and teaching.


2019 ◽  
Vol 952 (10) ◽  
pp. 47-54
Author(s):  
A.V. Komissarov ◽  
A.V. Remizov ◽  
M.M. Shlyakhova ◽  
K.K. Yambaev

The authors consider hand-held laser scanners, as a new photogrammetric tool for obtaining three-dimensional models of objects. The principle of their work and the newest optical systems based on various sensors measuring the depth of space are described in detail. The method of simultaneous navigation and mapping (SLAM) used for combining single scans into point cloud is outlined. The formulated tasks and methods for performing studies of the DotProduct (USA) hand-held laser scanner DPI?8X based on a test site survey are presented. The accuracy requirements for determining the coordinates of polygon points are given. The essence of the performed experimental research of the DPI?8X scanner is described, including scanning of a test object at various scanner distances, shooting a test polygon from various scanner positions and building point cloud, repeatedly shooting the same area of the polygon to check the stability of the scanner. The data on the assessment of accuracy and analysis of research results are given. Fields of applying hand-held laser scanners, their advantages and disadvantages are identified.


2021 ◽  
Vol 14 (8) ◽  
pp. 707
Author(s):  
Sumaira Anjum ◽  
Sara Ishaque ◽  
Hijab Fatima ◽  
Wajiha Farooq ◽  
Christophe Hano ◽  
...  

Healthcare, as a basic human right, has often become the focus of the development of innovative technologies. Technological progress has significantly contributed to the provision of high-quality, on-time, acceptable, and affordable healthcare. Advancements in nanoscience have led to the emergence of a new generation of nanostructures. Each of them has a unique set of properties that account for their astonishing applications. Since its inception, nanotechnology has continuously affected healthcare and has exerted a tremendous influence on its transformation, contributing to better outcomes. In the last two decades, the world has seen nanotechnology taking steps towards its omnipresence and the process has been accelerated by extensive research in various healthcare sectors. The inclusion of nanotechnology and its allied nanocarriers/nanosystems in medicine is known as nanomedicine, a field that has brought about numerous benefits in disease prevention, diagnosis, and treatment. Various nanosystems have been found to be better candidates for theranostic purposes, in contrast to conventional ones. This review paper will shed light on medically significant nanosystems, as well as their applications and limitations in areas such as gene therapy, targeted drug delivery, and in the treatment of cancer and various genetic diseases. Although nanotechnology holds immense potential, it is yet to be exploited. More efforts need to be directed to overcome these limitations and make full use of its potential in order to revolutionize the healthcare sector in near future.


2018 ◽  
Vol 299 ◽  
pp. 91-98
Author(s):  
Maria Witewska ◽  

The article aims at presenting the topic of cognitive interview (CI) taking into account its advantages and disadvantages, as well as the usefulness of its application in Polish law enforcement during pre-trial proceedings. Due to the wide application of this method of questioning, mainly in countries with the common law judicial systems, it is worth considering which of the achievements of combined science and practice from Western Countries may be adapted in Poland. Are there any contraindications to conduct interviews by means of this method? If not, the question arises – what benefits it can bring to Polish practice.


Author(s):  
ELENA CHESNOKOVA ◽  

The purpose of the research work is to analyze the advantages and disadvantages of the «flexible» field of accreditation of forensic laboratories and the field of accreditation that has a rigid range. The development of standardization in forensic science, including the expansion of the number of forensic laboratories that build their activities in accordance with the requirements of the international standard GOST ISO/IEC 17025-2019 «General requirements for the competence of testing and calibration laboratories», encourages us to pay attention to this issue again. In the course of the study, the following conclusions were formulated. Insufficient clarity in defining the «flexible» scope of accreditation and differences in the understanding of its boundaries by the accreditation body, the forensic laboratory and the customer can lead to abuse by individual laboratories and the development of unfair competition. This argument in favor of abandoning the «flexible» field of accreditation for forensic laboratories seems to be much more weighty than the listed advantages of its practical application.


2021 ◽  
Author(s):  
Stepan A. Lapshinov ◽  
Vadim A. Shakhnov ◽  
Anton V. Yudin

The paper considers the principles of intelligent motion control of mobile robots using the example of omni-wheel modules. The proposed design solution uses components of movement intelligence in any direction, receiving commands from a human operator or above a standing automatic control device, consisting of an angle of movement direction and the required distance of movement. This paper presents an embodiment of using omni-wheels to move a mobile robot over a flat surface. Features of device and application of drive with three omni-wheels in comparison with differential drive are considered. Kinematics, basic principles of motion control formation, hardware and software complex for its implementation are described. There were revealed two alternative methods of organization of drive control in conditions of shortage of low-level hardware resources on the basis of 8-bit microcontroller, their advantages and disadvantages have been analyzed. Process support and materials have been presented that allows realizing the competitive advantages of development while minimizing the cost of components. Features of mobile robot travel route development have been mentioned on the example of competitive practice.


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