USCIS Policy Memo Use of DNA Evidence to Prove Sibling Relationships

USCIS policy memo stating that because probability standards for sibling-to-sibling DNA test results have not been established, USCIS may not afford evidentiary weight to sibling-to-sibling DNA test results. USCIS will, however, continue to rely on DNA testing results between parents and children.

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Cite as AILA Doc. No. 14102940.

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