scholarly journals Policy required for entry of DNA profiles onto the National Forensic DNA Database of South Africa

2014 ◽  
Vol 110 (7/8) ◽  
pp. 1-3 ◽  
Author(s):  
Laura J. Heathfield
Keyword(s):  
South Africa ◽  
Forensic Dna ◽  
Dna Database ◽  
Dna Profiles

Functioning of DNA Database in Poland

2017 ◽  
Vol 297 ◽  
pp. 59-65
Author(s):  
Anna Jurga ◽  
◽  
Jakub Mondzelewski ◽  
Keyword(s):  
Law Enforcement ◽  
Personal Data ◽  
Police Work ◽  
The Other ◽  
Forensic Dna ◽  
Criminal Cases ◽  
Dna Databases ◽  
Dna Database ◽  
Small Collection ◽  
Dna Profiles

Forensic DNA databases that operate in the zone forming an interface between science and law have the purpose of gathering and processing DNA profiles for the needs of law enforcement and judicial authorities responsible for preventing and combating crime. Therefore, their appropriate functioning is important. On one hand, it improves efficiency of police work and, on the other hand, it has to play a required role in protecting citizen rights and personal data. The National DNA Database has functioned in Poland since 2007. Its effectiveness is correlated with the number of stored profiles. Despite small collection the Database has on numerous occasions proven its high usefulness in solving criminal cases. The possibility of carrying out searches in other countries databases, as well as legislative and organisational undertakings aiming at improvement of the Database operation are gradually bringing effects and result in an increased detective potential of this tool.

Turning Base Hits into Earned Runs: Improving the Effectiveness of Forensic DNA Data Bank Programs

2006 ◽  
Vol 34 (2) ◽  
pp. 222-233 ◽  
Author(s):  
Frederick R. Bieber
Keyword(s):  
Law Enforcement ◽  
Biological Samples ◽  
Data Bank ◽  
Crime Scene ◽  
Forensic Dna ◽  
Potential Harm ◽  
The Public ◽  
Dna Database ◽  
Dna Profiles ◽  
Data Banks

Forensic data banks contain biological samples and DNA extracts as well as computerized databases of coded DNA profiles of convicted offenders, arrestees and crime scene samples. When used for investigative and law enforcement purposes, DNA data banks have been successful in providing key investigative leads in hundreds of criminal investigations. A number of these crimes would never have been resolved without use of such data banks. In addition, in some limited number of investigations, the exclusion of known suspects whose DNA profiles are known to be in an offender database can save valuable investigative time.Despite the above benefits, in hundreds of cases DNA samples are never collected and administrative and laboratory logjams delay prompt database searches. Furthermore, hundreds of DNA database matches (hits) languish, without any followup by law enforcement or prosecutors. These prevent or delay DNA matches and therefore can leave the public in grave risk of potential harm from recidivistic offenders who otherwise could have been apprehended and convicted if the process functioned more effectively.

Beyond the Cold Hit: Measuring the Impact of the National DNA Data Bank on Public Safety at the City and County Level

2010 ◽  
Vol 38 (2) ◽  
pp. 396-411 ◽  
Author(s):  
Matthew Gabriel ◽  
Cherisse Boland ◽  
Cydne Holt
Keyword(s):  
Public Safety ◽  
Performance Metrics ◽  
Data Bank ◽  
County Level ◽  
Forensic Dna ◽  
Dna Database ◽  
Depth Analysis ◽  
Dna Profiles ◽  
The Impact ◽  
The City

Criminalistics laboratories routinely provide cold hits in police investigations by comparing DNA profiles from crime scenes to offenders residing in the Combined DNA Index System (CODIS). Forensic DNA analysis is often glamorized in popular culture, where the perpetrators are identified and crimes solved within a single television episode. In reality forensic DNA hits can identify perpetrators of violent offenses, link multiple crimes committed by the same individual, or exclude suspects and exonerate the falsely accused. Unlike the media portrayals, downstream activities after a DNA identification or cold hit are often more complex. While the Federal Bureau of Investigation (FBI) cites a national Data Bank of more than 7.2 million DNA profiles and 94,000 identifications nationwide, an in-depth analysis of public safety improvements made with CODIS is currently unavailable to forensic practitioners and public policy analysts. A review of case resolutions for 198 DNA database hits in San Francisco created performance metrics to provide a concrete measure of the effectiveness of DNA databasing efforts at the city and county level.

scholarly journals Is Obtaining an Arrestee's DNA a Valid Special Needs Search Under the Fourth Amendment? What Should (and Will) the Supreme Court Do?

2005 ◽  
Vol 33 (1) ◽  
pp. 102-124 ◽  
Author(s):  
Tracey Maclin
Keyword(s):  
Sex Offenders ◽  
State Legislatures ◽  
Recidivism Rate ◽  
Forensic Dna ◽  
Dna Database ◽  
The Supreme Court ◽  
Law Enforcement Officials ◽  
Scientific Accuracy ◽  
Dna Profiles ◽  
Forensic Dna Testing

In the past twenty years, advances in forensic DNA technology have revolutionized the American criminal justice system. The use of forensic DNA testing in America began in 1987, and its demonstrated scientific accuracy quickly led jurisdictions to accept expert testimony regarding DNA matches between suspects and crime scene evidence. Wielding the power to exonerate the innocent and apprehend the guilty, the use of DNA identification technology has become an indispensable resource for prosecutors and law enforcement officials, as well as for defense lawyers representing persons falsely accused or wrongfully convicted of crimes they did not commit. As states began to compile DNA profiles from convicted offenders, the need for a repository for these profiles resulted in the DNA database.Originally, DNA databases included only “those classes of offenders with a high recidivism rate, such as sex offenders and violent felons.” Recognizing the crime-solving potential of this technology, state legislatures soon began to expand the scope of DNA database statutes to include broader classes of offenders.

Forensic DNA Data Banks and Data Mining

2020 ◽  
pp. 67-104
Author(s):  
Frederick R. Bieber
Keyword(s):  
Crime Scene ◽  
Forensic Dna ◽  
Policy Issues ◽  
High Profile ◽  
Dna Database ◽  
The Individual ◽  
Genetic Profiles ◽  
Dna Profiles ◽  
Forensic Genetic ◽  
Data Banks

This chapter discusses how comparing the genetic profiles from crime scene evidence with the profiles in a DNA database can identify persons of interest. Forensic data banks contain DNA extracts as well as computerized databases of coded DNA profiles of convicted offenders, arrestees, and crime scene samples. Searching forensic DNA data banks has provided key investigative leads in thousands of criminal investigations. The chapter explains familial searching, the search for a “partial” match of the evidence profile with a database profile, which leads to the identification of a suspect who is related to the individual in the database, and discusses several high-profile cases that have used this strategy. The recent cases solved by searching ancestry-based DNA databases (genealogics or forensic genetic genealogy) are discussed, as are the metrics for evaluating the effectiveness of DNA database mining as well as the legal and policy issues involved in balancing public safety with privacy interests.

scholarly journals Is Obtaining an Arrestee's DNA a Valid Special Needs Search under the Fourth Amendment? What Should (and Will) the Supreme Court Do?

2006 ◽  
Vol 34 (2) ◽  
pp. 165-187
Author(s):  
Tracey Maclin
Keyword(s):  
Sex Offenders ◽  
State Legislatures ◽  
Recidivism Rate ◽  
Forensic Dna ◽  
Dna Database ◽  
The Supreme Court ◽  
Law Enforcement Officials ◽  
Scientific Accuracy ◽  
Dna Profiles ◽  
Forensic Dna Testing

In the past twenty years, advances in forensic DNA technology have revolutionized the American criminal justice system. The use of forensic DNA testing in America began in 1987, and its demonstrated scientific accuracy quickly led jurisdictions to accept expert testimony regarding DNA matches between suspects and crime scene evidence. Wielding the power to exonerate the innocent and apprehend the guilty, the use of DNA identification technology has become an indispensable resource for prosecutors and law enforcement officials, as well as for defense lawyers representing persons falsely accused or wrongfully convicted of crimes they did not commit. As states began to compile DNA profiles from convicted offenders, the need for a repository for these profiles resulted in the DNA database.Originally, DNA databases included only “those classes of offenders with a high recidivism rate, such as sex offenders and violent felons.” Recognizing the crime-solving potential of this technology, state legislatures soon began to expand the scope of DNA database statutes to include broader classes of offenders.

scholarly journals Assessment of QIAGEN™ Investigator® 24plex GO! kit workflow for autosomal STR profiling of forensic reference samples

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Hashom Mohd Hakim ◽  
Hussein Omar Khan ◽  
Siti Afifah Ismail ◽  
Nurul Hazirah Mat Lazim ◽  
Japareng Lalung ◽  
...  
Keyword(s):  
Pcr Amplification ◽  
Dna Profiling ◽  
Buccal Swab ◽  
Forensic Dna ◽  
Str Typing ◽  
Str Analysis ◽  
Dna Database ◽  
Autosomal Str ◽  
Dna Template ◽  
Reference Samples

Abstract Background DNA profiling has proven to be a valuable technique for identification of individuals in crime. Currently, the technique targets several short tandem repeat (STR) regions in human genome. However, increasing number of samples submitted for STR analysis may lead to delays due to the limited number of experienced analysts who might be available at any given moment and the time taken to complete lengthy DNA profiling procedures. This study was conducted to test the specificity, repeatability, reproducibility and robustness of Investigator® 24plex GO! kit for genotyping of reference samples submitted to the Royal Malaysian Police Forensic DNA Laboratory for DNA database. Material and methods In this study, Investigator® 24plex GO! kit was used to directly amplify STR loci from buccal swab cell of reference samples that had previously been STR typed using GlobalFiler™ Express kit. Capillary electrophoresis was carried out on a 3500xL Genetic Analyser using POP-4® Polymer. Amplified products were assigned to particular STR alleles using the GeneMapper ID-X version 1.4 software. Results Our study shows that STR profiles generated using Investigator® 24plex GO! gave concordance results with those previously obtained using the GlobalFiler™ Express kit. In addition, quality sensors included in the kit are of particular importance for determining the effectiveness of the PCR reaction and help to indicate the nature and quantity of DNA template for PCR amplification. Conclusion The Investigator® 24plex GO! kit is reliable for STR typing of reference samples.

Conditional Genotypic Probabilities for Microsatellite Loci

Genetics ◽  
2000 ◽  
Vol 155 (4) ◽  
pp. 1973-1980
Author(s):  
Jinko Graham ◽  
James Curran ◽  
B S Weir
Keyword(s):  
Short Tandem Repeats ◽  
Tandem Repeats ◽  
Dirichlet Distribution ◽  
Forensic Dna ◽  
Match Probability ◽  
Microsatellite Genotype ◽  
Allelic State ◽  
Forensic Assessments ◽  
Dna Profiles ◽  
Short Tandem

Abstract Modern forensic DNA profiles are constructed using microsatellites, short tandem repeats of 2–5 bases. In the absence of genetic data on a crime-specific subpopulation, one tool for evaluating profile evidence is the match probability. The match probability is the conditional probability that a random person would have the profile of interest given that the suspect has it and that these people are different members of the same subpopulation. One issue in evaluating the match probability is population differentiation, which can induce coancestry among subpopulation members. Forensic assessments that ignore coancestry typically overstate the strength of evidence against the suspect. Theory has been developed to account for coancestry; assumptions include a steady-state population and a mutation model in which the allelic state after a mutation event is independent of the prior state. Under these assumptions, the joint allelic probabilities within a subpopulation may be approximated by the moments of a Dirichlet distribution. We investigate the adequacy of this approximation for profiled loci that mutate according to a generalized stepwise model. Simulations suggest that the Dirichlet theory can still overstate the evidence against a suspect with a common microsatellite genotype. However, Dirichlet-based estimators were less biased than the product-rule estimator, which ignores coancestry.

‘The NDNAD Has No Ability in Itself to be Discriminatory’: Ethnicity and the Governance of the UK National DNA Database

Sociology ◽  
2013 ◽  
Vol 47 (5) ◽  
pp. 976-992 ◽  
Author(s):  
David Skinner
Keyword(s):  
Black People ◽  
Crime Scene ◽  
Institutional Racism ◽  
Use Of Data ◽  
Dna Database ◽  
The Uk ◽  
Dna Profiles ◽  
Political Governance ◽  
Ethnic Appearance

This article explores the place of ‘ethnicity’ in the operation, management and contestation of the UK National DNA Database (NDNAD). In doing so, it examines the limitations of bioethics as a response to political questions raised by the new genetics. The UK police forensic database has been racialised in a number of distinct ways: in the over-representation of black people in the database population; in the classification of all DNA profiles according to ‘ethnic appearance’; in the use of data for experiments to determine the ethnicity of crime scene DNA; and in the focus on ethnicity in public debate about the database. This racialisation presented potential problems of legitimacy for the NDNAD but, as the article shows, these have been partly neutralised through systems of ethico-political governance. In these systems of governance discussion of institutional racism has been postponed or displaced by other ways of talking about ethnicity and identity.

scholarly journals Improved forensic DNA analysis through the use of alternative DNA polymerases and statistical modeling of DNA profiles

BioTechniques ◽  
2009 ◽  
Vol 47 (5) ◽  
pp. 951-958 ◽  
Author(s):  
Johannes Hedman ◽  
Anders Nordgaard ◽  
Birgitta Rasmusson ◽  
Ricky Ansell ◽  
Peter Rådström
Keyword(s):  
Statistical Modeling ◽  
Dna Analysis ◽  
Dna Polymerases ◽  
Forensic Dna ◽  
Forensic Dna Analysis ◽  
Dna Profiles
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