The person residing in the United States is the petitioner. We can set up an appointment for the petitioner to be collected at a facility close to their home. They will need a government issued photo identification and a copy of a letter from the USCIS/ Embassy asking for a DNA test.
If this letter were not available we would require any document they have received stating their government issued case number. This paperwork will allow the USCIS/ Embassy to match the laboratory results to the correct