scholarly journals Forenzná analýza stôp rezných nástrojov na kostiach

2021 ◽  
Vol 6 (1) ◽  
pp. 20-33
Author(s):  
Soňa Masnicová ◽  
Magdaléna Krajníková ◽  
Radoslav Beňuš
Keyword(s):  
Cutting Tools ◽  
Forensic Analysis ◽  
Microscopic Structure ◽  
Analysis And Evaluation ◽  
Tool Marks

The article deals with the problem of forensic analysis of cutting tools traces on bones. It focuses on the assessment of macroscopic and microscopic structure of damaged tissue due to various cutting tools. It points out the need for teamwork of several experts in the analysis and evaluation of tool marks on the bones.

An Experimental Study of the Formation of Tool Marks Made by Facet Diamond Cutting Tools in Single-Point Diamond Turning

2007 ◽  
Vol 364-366 ◽  
pp. 544-549
Author(s):  
Ming Chu Kong ◽  
Wing Bun Lee ◽  
Chi Fai Cheung ◽  
Suet To
Keyword(s):  
Single Point ◽  
Cutting Tools ◽  
Electroless Nickel ◽  
Diamond Turning ◽  
Diamond Cutting ◽  
Machined Surface ◽  
Fundamental Study ◽  
Tool Marks ◽  
Tool Mark ◽  
Diamond Cutting Tools

The formation of tool marks in single-point diamond turning is a fundamental study of the effect of materials swelling and recovery on surface roughness on a machined surface. A series of orthogonal face cutting tests has been conducted among plate aluminum alloy, oxygen-free high conductivity copper and electroless nickel phosphorus under the same cutting conditions by the use of facet tools with different front clearance angles. The results show that the regular width of the undulating pattern in tool marks could be explained by side swelling and the micro-waviness within a tool mark is caused by burnishing and recovery.

scholarly journals Forensic Analysis and Interpretation of Tool Marks

2021 ◽  
Author(s):  
Sachil Kumar ◽  
Geetika Saxena ◽  
Archana Gautam
Keyword(s):  
Forensic Science ◽  
Scientific Knowledge ◽  
Legal Profession ◽  
Crime Scene ◽  
Forensic Analysis ◽  
Criminal Investigations ◽  
Tool Marks ◽  
Tool Mark ◽  
The Way

The forensic analysis and interpretation of tool marks raise for consideration key methods and advances in the field of tool marks in forensic science. This chapter shows how tool mark analysis can be utilized in the course of criminal investigations. The focus of the chapter is on bringing together as much scientific knowledge in the area as possible in an accessible manner. It covers all aspects of tool mark evidence from the crime scene to the courtroom. This chapter provides information about tool marks in an effort to assist tool mark examiners as well as people practicing forensic science, crime scene examiners, crime investigating officers and members of the legal profession. It includes information about the analysis of tool marks at the crime scene and in the laboratory, the interpretation and assessment of challenges for examination and interpretation and also the way in which tool mark evidence can be presented in a courtroom.

Forensic applications of IR infrared microscopic internal reflection spectroscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1528-1529
Author(s):  
Edward G. Bartick ◽  
John A. Reffner
Keyword(s):  
Specular Reflection ◽  
Forensic Analysis ◽  
Attenuated Total Reflection ◽  
Internal Reflection ◽  
Standard Size ◽  
Ir Microscopy ◽  
Ir Analysis ◽  
Plastic Explosives ◽  
Internal Reflection Spectroscopy ◽  
Reflectance Measurements

Since the introduction of commercial Fourier transform infrared (FTIR) microscopic systems in 1983, IR microscopy has developed as an important analytical tool in research, industry and forensic analysis. Because of the frequent encounter of small quantities of physical evidence found at crime scenes, spectroscopic IR microscopes have proven particularly valuable for forensic applications. Transmittance and reflectance measurements have proven very useful. Reflection-absorption, specular reflection, and diffuse reflection have all been applied. However, it has been only very recently that an internal reflection (IRS) objective has been commercially introduced.The IRS method, also known as attenuated total reflection (ATR), has proven very useful for IR analysis of standard size samples. The method has been applied to adhesive tapes, plastic explosives, and general applications in the analysis of opaque materials found as evidence. The small quantities or uncontaminated areas of specimens frequently found requiring forensic analysis will often be directly applicable to microscopic IRS analysis.

Sign in / Sign up

Export Citation Format

Share Document