The effectiveness of forensic genealogy techniques in the United Kingdom – an experimental assessment

Jim Thomson, Tim Clayton, John Cleary, Maurice Gleeson, Debbie Kennett, Michelle Leonard, Donna Rutherford

Research output: Contribution to journalArticle

Abstract

The use of forensic genealogy techniques to identify Joseph James DeAngelo as the prime suspect in the Golden State Killer case in 2018 has opened up a new approach to investigation of cold cases. Since that breakthrough, these methods have been reportedly applied to more than 50 investigations. To date, all of these relate to investigations in the US, where the high uptake of “direct-to-consumer” (DTC) genetic testing by individuals conducting private ancestral research has provided the necessary publicly available data for successful forensic investigations. We have conducted a study to assess the likely effectiveness of forensic genealogy techniques if applied to investigations in the UK. Volunteers provided their own SNP array data, downloaded from a DTC provider of their choice. These data sets were anonymised and uploaded to the GEDmatch Genesis genealogy website, mimicking data sets from unsourced crime samples. A team of experienced genealogists then attempted to identify the donors of the anonymised data sets by identifying relatives on the database and triangulating to determine their shared family lineages which were further investigated using traditional resources (such as birth, marriage, death and census records). Four individuals out of a convenience sample of ten we correctly identified, at least to the level of one of a set of siblings.

Original languageEnglish
Pages (from-to)765-767
Number of pages3
JournalForensic Science International: Genetics Supplement Series
Volume7
Issue number1
Early online date1 Nov 2019
DOIs
Publication statusPublished - Dec 2019

Fingerprint

Genealogy and Heraldry
Death Certificates
Genetic Testing
Censuses
Crime
Marriage
Single Nucleotide Polymorphism
Siblings
Volunteers
Tissue Donors
Parturition
Databases
Research
United Kingdom
Datasets

Keywords

  • Ancestry
  • Forensic genealogy
  • GEDmatch
  • Genetic genealogy

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Genetics

Cite this

Thomson, Jim ; Clayton, Tim ; Cleary, John ; Gleeson, Maurice ; Kennett, Debbie ; Leonard, Michelle ; Rutherford, Donna. / The effectiveness of forensic genealogy techniques in the United Kingdom – an experimental assessment. In: Forensic Science International: Genetics Supplement Series. 2019 ; Vol. 7, No. 1. pp. 765-767.
@article{d4b933a6c4ce4a0585c86eb0f36c41a9,
title = "The effectiveness of forensic genealogy techniques in the United Kingdom – an experimental assessment",
abstract = "The use of forensic genealogy techniques to identify Joseph James DeAngelo as the prime suspect in the Golden State Killer case in 2018 has opened up a new approach to investigation of cold cases. Since that breakthrough, these methods have been reportedly applied to more than 50 investigations. To date, all of these relate to investigations in the US, where the high uptake of “direct-to-consumer” (DTC) genetic testing by individuals conducting private ancestral research has provided the necessary publicly available data for successful forensic investigations. We have conducted a study to assess the likely effectiveness of forensic genealogy techniques if applied to investigations in the UK. Volunteers provided their own SNP array data, downloaded from a DTC provider of their choice. These data sets were anonymised and uploaded to the GEDmatch Genesis genealogy website, mimicking data sets from unsourced crime samples. A team of experienced genealogists then attempted to identify the donors of the anonymised data sets by identifying relatives on the database and triangulating to determine their shared family lineages which were further investigated using traditional resources (such as birth, marriage, death and census records). Four individuals out of a convenience sample of ten we correctly identified, at least to the level of one of a set of siblings.",
keywords = "Ancestry, Forensic genealogy, GEDmatch, Genetic genealogy",
author = "Jim Thomson and Tim Clayton and John Cleary and Maurice Gleeson and Debbie Kennett and Michelle Leonard and Donna Rutherford",
year = "2019",
month = "12",
doi = "10.1016/j.fsigss.2019.10.169",
language = "English",
volume = "7",
pages = "765--767",
journal = "Forensic Science International: Genetics Supplement Series",
issn = "1875-1768",
number = "1",

}

The effectiveness of forensic genealogy techniques in the United Kingdom – an experimental assessment. / Thomson, Jim; Clayton, Tim; Cleary, John; Gleeson, Maurice; Kennett, Debbie; Leonard, Michelle; Rutherford, Donna.

In: Forensic Science International: Genetics Supplement Series, Vol. 7, No. 1, 12.2019, p. 765-767.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effectiveness of forensic genealogy techniques in the United Kingdom – an experimental assessment

AU - Thomson, Jim

AU - Clayton, Tim

AU - Cleary, John

AU - Gleeson, Maurice

AU - Kennett, Debbie

AU - Leonard, Michelle

AU - Rutherford, Donna

PY - 2019/12

Y1 - 2019/12

N2 - The use of forensic genealogy techniques to identify Joseph James DeAngelo as the prime suspect in the Golden State Killer case in 2018 has opened up a new approach to investigation of cold cases. Since that breakthrough, these methods have been reportedly applied to more than 50 investigations. To date, all of these relate to investigations in the US, where the high uptake of “direct-to-consumer” (DTC) genetic testing by individuals conducting private ancestral research has provided the necessary publicly available data for successful forensic investigations. We have conducted a study to assess the likely effectiveness of forensic genealogy techniques if applied to investigations in the UK. Volunteers provided their own SNP array data, downloaded from a DTC provider of their choice. These data sets were anonymised and uploaded to the GEDmatch Genesis genealogy website, mimicking data sets from unsourced crime samples. A team of experienced genealogists then attempted to identify the donors of the anonymised data sets by identifying relatives on the database and triangulating to determine their shared family lineages which were further investigated using traditional resources (such as birth, marriage, death and census records). Four individuals out of a convenience sample of ten we correctly identified, at least to the level of one of a set of siblings.

AB - The use of forensic genealogy techniques to identify Joseph James DeAngelo as the prime suspect in the Golden State Killer case in 2018 has opened up a new approach to investigation of cold cases. Since that breakthrough, these methods have been reportedly applied to more than 50 investigations. To date, all of these relate to investigations in the US, where the high uptake of “direct-to-consumer” (DTC) genetic testing by individuals conducting private ancestral research has provided the necessary publicly available data for successful forensic investigations. We have conducted a study to assess the likely effectiveness of forensic genealogy techniques if applied to investigations in the UK. Volunteers provided their own SNP array data, downloaded from a DTC provider of their choice. These data sets were anonymised and uploaded to the GEDmatch Genesis genealogy website, mimicking data sets from unsourced crime samples. A team of experienced genealogists then attempted to identify the donors of the anonymised data sets by identifying relatives on the database and triangulating to determine their shared family lineages which were further investigated using traditional resources (such as birth, marriage, death and census records). Four individuals out of a convenience sample of ten we correctly identified, at least to the level of one of a set of siblings.

KW - Ancestry

KW - Forensic genealogy

KW - GEDmatch

KW - Genetic genealogy

UR - http://www.scopus.com/inward/record.url?scp=85075877907&partnerID=8YFLogxK

U2 - 10.1016/j.fsigss.2019.10.169

DO - 10.1016/j.fsigss.2019.10.169

M3 - Article

VL - 7

SP - 765

EP - 767

JO - Forensic Science International: Genetics Supplement Series

JF - Forensic Science International: Genetics Supplement Series

SN - 1875-1768

IS - 1

ER -