Identity DNA Test

Identity DNA test identifies whether the samples at a crime scene match each other through genetic analysis and identifies whether they belong to the same person.

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    Test Principles

DNA is a genetic substance that carries genetic information. Everyone inherits DNA from their parents and has a DNA profile, which is a unique genetic pattern that distinguishes each other.

DNA profile is unique genetic information and a combination of genes with a series of repetitions that can be used to identify each person. Identify DNA test examines whether two or more samples match DNA profiles, which are genetic evidence, to determine if they belong to the same person. For example, a DNA test is performed on the hair of the perpetrator found in the crime scene and the suspect’s sample, and determines if it belongs to the same person by examining whether it matches each other in the tested gene. DowGene DNA Testing Company performs genetic tests based on the CODIS genetic marker, which is used by the US FBI. We are a KOLAS internationally accredited testing institution that has introduced the testing quality management system to ensure accurate quality control throughout our testing procedures.

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    Test specimen

Blood, hair, oral epithelial cell, saliva, bloodstain, specimen with bodily fluid, chewing gum, cigarette butt, tissues with semen, fingernail, tissues, etc.

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    Test Procedures
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    DNA analysis results

DNA analysis is performed on two specimens, and if all the genotypes of all the genes tested match,
it is determined to have come from the same person.
However, if one or more genes show discrepancies, it indicates that they belong to
different individuals.

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    Application of identity DNA test
  • When identification is required by using evidence collected from the crime scene, such as bloodstain, hair, tissues with semen, saliva, cigarette butt, fingernail, etc
  • When identification is required after an unexpected accident