The manner in which evidence is stored and protected can often mean the difference between conviction and acquittal. With this in mind, Sirchie introduces the integrity evidence bag. These all-in-one bags are waterproof, tear- and puncture-resistant, printable and include a tamperproof seal. No other evidence bag offers greater integrity, security and convenience. Made of heavy-duty, 3.2-mil-thick, multilayer, coextruded polyolefin film.