The term DNA sequencing refers to methods for determining the order of the nucleotides
bases adenine,guanine,cytosine and thymine in a molecule of DNA. The first DNA sequence
were obtained by academic researchers,using laboratories methods based on 2- dimensional
chromatography in the early 1970s. By the development of dye based sequencing method
with automated analysis,DNA sequencing has become easier and faster.
Forensic DNA Typing charts the progress and development of DNA applied to
criminal forensics, providing vivid demonstrations of the amazing potential of
the method, not only to convict the guilty but also to exonerate the innocent.
John Butler has created a text that caters to all audiences, covering the basics
of DNA structure and function and describing in detail how the techniques are
used. In addition, the extensive use of D.N.A. (Data, Notes, and Application)
Boxes in the text enables the reader to dip in and out as he or she pleases....
Over the last 20 years the development and application of genetics has revolutionized
forensic science. In 1984, the analysis of polymorphic regions of DNA produced what
was termed ‘a DNA fingerprint’ . The following year, at the request of the United
Kingdom Home Office, DNA profiling was successfully applied to a real case, when it
was used to resolve an immigration dispute . Following on from this, in 1986, DNA
evidence was used for the first time in a criminal case and identified Colin Pitchfork
as the killer of two school girls in Leicestershire, UK.
This book contains information obtained from authentic and highly regarded sources.Reprinted material is quoted with permission ,and sources are indicated.A wide variety of refernces are listed .Reasonable efforts have been made to publish reliable data and information,but the author and the publisher cannot assume responibility for the validity of all materials or for the consequences of their use.
Từ những năm 30s dấu vân tay được đưa vào ứng dụng trong Y Pháp
(Forensics) và trở thành một công cụ cần thiết trong phòng thí nghiệm của
cảnh sát hình sự và thám tử để nhận dạng. Tuy nhiên dấu vân tay đã bộc
lộ nhiều khiếm khuyết một khi áp dụng trong thực tế. Chẳng hạn, dấu
vân tay thông thường chỉ có thể lấy mẫu được từ các đầu ngón tay mà
Crime labs report about 25% of
samples sent by law enforcement
do not match primary suspect
(FBI, GBI, Virginia, Connecticut,
Justice Department). Other activities:
Basque mitochondrial heritage study of 95
Murder of an Alaskan Native Chief.
Discovering what lies behind a hill or beyond a neighborhood can be as
simple as taking a short walk. But curiosity and the urge to make new dis-
coveries usually require people to undertake journeys much more adven-
turesome than a short walk, and scientists oft en study realms far removed
from everyday observation—sometimes even beyond the present means
of travel or vision.
Learning objectives of this chapter include: Define and distinguish forensic science and criminalistics, Understand the importance of an investigator's understanding of crime laboratory capabilities, Describe the three measures of effectiveness of crime laboratories, Distinguish the Frye test from the Daubert test regarding the admissibility of scientific evidence, Explain the role and importance of DNA analysis in criminal investigation,…
DNA identification techniques are the only solution but even these methods are not always
conclusive. Other forensic techniques are also available for determining whether particular
species are contained within medicines, such as thin layer chromatography. Under CITES it is
not necessary to prove whether the species is actually contained within a processed medicine, if
the ingredients of the medicine claim to contain it. However, in some countries domestic laws
may require that it is proven to genuinely contain the species claimed, if a successful conviction
is to be achieved.