DNA Collection DNA cards collected from Air Force trainees at Lackland Air Force Base, Texas, Nov. 8, 2018, are left to dry before they're boxed and shipped off to the Armed Forces Medical Examiner System. About 225,000 new DNA reference cards are collected and accessioned yearly. SHARE: Download: Full Size (1.16 MB) Tags: DNA, Air Force Credit: Air Force Staff Sgt. Nicole Leidholm VIRIN: 181108-F-BH656-0050H.JPG Photo Gallery