This pack of 100 evidence bags measures 12 x 16 inches and is made from 100% recyclable, transparent 2.5 mil coextruded polyethylene. Each bag features a tamper-resistant, fold-over closure that distorts when stretched or torn, revealing any tampering attempts. Each bag incorporates a unique serial number displayed on the bag itself and on the removable perforated top edge to establish an audit trail. Non-smearing writable areas are included for identification and reference. The bags are Federal Reserve compliant and constructed from heavy, tear-resistant material. Suitable for evidence collection, chain-of-custody documentation, and forensic science education.