... in response to aos update from florida, posted by keithandkatya on Oct 3, 2002My wife and son had fingerprints done at AOS for thier EAD card. A few months after submitting AOS, we received an appointment letter to have fingerprints done again ( a full set)...but this time in our home town, instead of the long drive to San Francisco.
My wife and son were fingerprinted yet a third time at her AOS interview...index finger only....which we see on her green card.
It was my understanding that the full set of fingerprints were needed for a final FBI background check before the interview.