Lightning Powder Evidence Security Bags - 1005338. The word "EVIDENCE" is printed around the borders of the bag. If the bag is opened then heat-sealed closed the words will shorten or distort. The bags are leak-proof and made of 4 mil. thick tear and puncture-resistant plastic. Each Evidence Security Bag has a pre-printed chain-of-custody label on it with blue lines on a white background. The majority of the front panel is covered with a translucent white which provides plenty of writing space. However the back and the edges remain completely clear so that evidence is still easy to see. Each bag features a unique control number. The top edge is perforated and has a matching control number. The top edge can be removed by the person sealing the bag and kept as a receipt. The tear-off receipt also includes an area to write information pertaining to the evidence. Available in a pack of 100. Specifications for Forensics Source Evidence Security Bags Pack of 100: Manufacturer: Forensics Source Quantity: 100 Package Contents: Forensics Source Evidence Security Bags Pack of 100 The Armor Forensics Forensics Source Evidence Security Bags Pack of 100 is a quality addition to the Forensics Source lineup. For more great deals on CSI and Forensic Supplies by Forensics Source please browse our Forensics Source CSI and Forensic Supplies page.