The scientific method in forensic science: a Canadian handbook

2021 ◽  
pp. 1-2
Author(s):  
Michael Gorn
Keyword(s):  
Forensic Science ◽  
Scientific Method

What Counts for Identity? The Historical Origins of the Methodology of Latent Fingerprint Identification

1999 ◽  
Vol 12 (1) ◽  
pp. 139-172 ◽  
Author(s):  
Simon Cole
Keyword(s):  
Forensic Science ◽  
Scientific Method ◽  
Rhetoric Of Science ◽  
The Other ◽  
Fingerprint Identification ◽  
Traditional Practice ◽  
Latent Fingerprint ◽  
Scientific Foundation ◽  
History Of ◽  
Historical Origins

The ArgumentTwo parallel traditions have coexisted throughout the history of modern finger print identification. One, which gave more emphasis to the rhetoric of “science,” has always been somewhat troubled by the lack of an easily articulated scientific foundation for “dactyloscopy.” The other, more concerned with practicalities, was satisfied that the method of fingerprint identification appeared to “work” and that it won widespread legal acceptance. The latter group established conser vative rules of practice to guard against errors and preserve the credibility of latent fingerprint identification in the eyes of the law. The legacy of this history is coming home to roost today, as some latent fingerprint examiners (LFPEs) are beginning to argue that the traditional practice of latent fingerprint comparison lacks a scientific foundation appropriate to contemporary forensic science. This issue raises the question of what constitutes a “scientific” method for individual ized identification in a legal setting.

Forensics: evidence examination via Raman spectroscopy

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Marisia A. Fikiet ◽  
Shelby R. Khandasammy ◽  
Ewelina Mistek ◽  
Yasmine Ahmed ◽  
Lenka Halámková ◽  
...  
Keyword(s):  
Analytical Chemistry ◽  
Raman Spectroscopy ◽  
Forensic Science ◽  
Scientific Method ◽  
Crime Scene ◽  
The State ◽  
New Methods ◽  
Methods Development ◽  
Forensic Examination ◽  
Non Destructive

Abstract Forensic science can be broadly defined as the application of any of the scientific method to solving a crime. Within forensic science there are many different disciplines, however, for the majority of them, five main concepts shape the nature of forensic examination: transfer, identification, classification/individualization, association, and reconstruction. The concepts of identification, classification/individualization, and association rely greatly on analytical chemistry techniques. It is, therefore, no stretch to see how one of the rising stars of analytical chemistry techniques, Raman spectroscopy, could be of use. Raman spectroscopy is known for needing a small amount of sample, being non-destructive, and very substance specific, all of which make it ideal for analyzing crime scene evidence. The purpose of this chapter is to show the state of new methods development for forensic applications based on Raman spectroscopy published between 2015 and 2017.

Sem/X-Ray Applications to the Forensic Science Field

1976 ◽  
Vol 34 ◽  
pp. 390-391
Author(s):  
K. Culbreth
Keyword(s):  
Forensic Science ◽  
Depth Of Field ◽  
Surface Phenomena ◽  
Criminal Cases ◽  
Forensic Evidence ◽  
Science Field ◽  
X Ray ◽  
Hit And Run ◽  
Evaluation Of Evidence ◽  
Scanning Electron

The introduction of scanning electron microscopy and energy dispersive x-ray analysis to forensic science has provided additional methods by which investigative evidence can be analyzed. The importance of evidence from the scene of a crime or from the personal belongings of a victim and suspect has resulted in the development and evaluation of SEM/x-ray analysis applications to various types of forensic evidence. The intent of this paper is to describe some of these applications and to relate their importance to the investigation of criminal cases.The depth of field and high resolution of the SEM are an asset to the evaluation of evidence with respect to surface phenomena and physical matches (1). Fig. 1 shows a Phillips screw which has been reconstructed after the head and shank were separated during a hit-and-run accident.

Forensic Identifications Aided by Scanning Electron Microscopy of Silicone-Epoxy Microreplicas of Calcified and Cornified Structures

1975 ◽  
Vol 33 ◽  
pp. 678-679 ◽  
Author(s):  
R.F. Sognnaes
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Forensic Science ◽  
George Washington ◽  
Epithelial Surface ◽  
Extended Application ◽  
Tissue Surfaces ◽  
Non Destructive ◽  
Scanning Electron ◽  
Surface Changes

Sufficient experience has been gained during the past five years to suggest an extended application of microreplication and scanning electron microscopy to problems of forensic science. The author's research was originally initiated with a view to develop a non-destructive method for identification of materials that went into objects of art, notably ivory and ivories. This was followed by a very specific application to the identification and duplication of the kinds of materials from animal teeth and tusks which two centuries ago went into the fabrication of the ivory dentures of George Washington. Subsequently it became apparent that a similar method of microreplication and SEM examination offered promise for a whole series of problems pertinent to art, technology and science. Furthermore, what began primarily as an application to solid substances has turned out to be similarly applicable to soft tissue surfaces such as mucous membranes and skin, even in cases of acute, chronic and precancerous epithelial surface changes, and to post-mortem identification of specific structures pertinent to forensic science.

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