Database (DB) likelihood ratios (LR) play an integral role in DNA analysis and identification. In order to correctly determine the match statistic when studying a sample, forensic analysts need a tool that provides them with reliable information – at a fast pace.

DBLR™, developed by the Institute of Environmental Science and Research (ESR), is an application specifically designed to calculate millions of LRs – in a matter of seconds. Through this application, forensic analysts can identify expected ranges from different hypotheses – and can determine if the sample is suitable for comparison.

In order to calculate LRs efficiently and effectively, DBLR™ is used in conjunction with STRmix™, an innovative forensic software tool also developed by ESR. DBLR™ conducts rapid calculation of LRs using STRmix™ deconvolutions.  Watch a short video introducing DBLR!

DBLR™ performs the following functions:

  • Visualizes the value of DNA mixture evidence by calculating expected LRs for true and non-contributors using randomly generated individuals
  • Achieves quick database searches
  • Undertakes mixture-to-mixture matches
  • Calculates any kinship relationship conceivable (including modelling of linkage, mutation and FST)
  • Assigns Kinship LRs for single source NGS profiles
  • Manages automated searches for one or many DNA profiles against one or many databases of known individuals. Now includes direct matching between databases
  • Calculates thousands of LRs and plots them into a comprehensive diagram
  • Carries out familial searching for a range of different relationships
  • Conducts automated searches for one or multiple DNA profiles against databases of known individuals
  • Determines the profiles of the most likely contributors
  • Directly compares one or many components of a forensic mixture to a database of known individuals
  • Runs on users’ PCs without high-speed computing
  • Searches for common distributors between mixed DNA profiles
  • Uses databases of known contributors and STRmix™ deconvolutions for matching purposes
  • Works with efficient algorithms to generate fast calculations of LRs

 CONTACT US TO LEARN MORE

(866) 840-3758

(866) 840-3758

Upcoming Events

17 May

2026 ASCLD

May 17 - May 21
DeVos Place Convention Center, 303 Monroe Ave NW
Grand Rapids, MI 49503 United States
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Embark on a transformative experience at the 53rd annual American Society of Crime Laboratory Directors (ASCLD) Symposium - the premier gathering for forensic professionals striving to push boundaries, drive progress, […]

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17 May

2026 ASCLD

May 17 - May 21
DeVos Place Convention Center, 303 Monroe Ave NW
Grand Rapids, MI 49503 United States
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Embark on a transformative experience at the 53rd annual American Society of Crime Laboratory Directors (ASCLD) Symposium - the premier gathering for forensic professionals striving to push boundaries, drive progress, […]

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2026 IAFS

May 25 - May 30
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The IAFS 2026 meeting in Sofia, Bulgaria, is dedicated to one clear idea: working together. In a world facing complex security, legal and humanitarian challenges, no country, discipline or institution can […]

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17 May

2026 ASCLD

May 17 - May 21
DeVos Place Convention Center, 303 Monroe Ave NW
Grand Rapids, MI 49503 United States
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Embark on a transformative experience at the 53rd annual American Society of Crime Laboratory Directors (ASCLD) Symposium - the premier gathering for forensic professionals striving to push boundaries, drive progress, […]

Find out more
25 May

2026 IAFS

May 25 - May 30
National Palace of Culture (NDK), Bulgaria Blvd 1
Sofia, 1463 Bulgaria
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The IAFS 2026 meeting in Sofia, Bulgaria, is dedicated to one clear idea: working together. In a world facing complex security, legal and humanitarian challenges, no country, discipline or institution can […]

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11 Jun

2026 GITAD

June 11 - June 12
Gran Hotel Luna de Granada, Pl. del Guitarrista Manuel Cano, 2, Ronda
Granada, 18004 Spain
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The Genetic Identification Laboratory (LABIGÉN) of the University of Granada will be the organizing entity of the Grupo Iberoamericano de Trabajo en Análisis de DNA (GITAD) to be held in Granada, Spain, from 11 […]

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17 May

2026 ASCLD

May 17 - May 21
DeVos Place Convention Center, 303 Monroe Ave NW
Grand Rapids, MI 49503 United States
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Embark on a transformative experience at the 53rd annual American Society of Crime Laboratory Directors (ASCLD) Symposium - the premier gathering for forensic professionals striving to push boundaries, drive progress, […]

Find out more
25 May

2026 IAFS

May 25 - May 30
National Palace of Culture (NDK), Bulgaria Blvd 1
Sofia, 1463 Bulgaria
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The IAFS 2026 meeting in Sofia, Bulgaria, is dedicated to one clear idea: working together. In a world facing complex security, legal and humanitarian challenges, no country, discipline or institution can […]

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11 Jun

2026 GITAD

June 11 - June 12
Gran Hotel Luna de Granada, Pl. del Guitarrista Manuel Cano, 2, Ronda
Granada, 18004 Spain
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The Genetic Identification Laboratory (LABIGÉN) of the University of Granada will be the organizing entity of the Grupo Iberoamericano de Trabajo en Análisis de DNA (GITAD) to be held in Granada, Spain, from 11 […]

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ISFG 2026

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Montréal, QC H5A 1E4 Canada
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Come and discover or rediscover the Québec metropolis with us at the next ISFG congress!, where you can meet your colleagues and exchange ideas with them on the subjects we're […]

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