Security bag
A security bag is a heavy duty bag used to contain high-value products or documents or legally sensitive items. Envelopes with security features are called security envelopes as well as security bags. Cash for deposit in a bank is often placed in a special deposit bag with security features [1][2]. When used to contain items related to a crime, special evidence bags are used.[3] Authentication of signatures and chain of custody are often required.
![](../I/m/Security_bag_tape_showing_voiding_when_removed.jpg)
![](../I/m/Tamper_evident_currency_bag.jpg)
Construction
Security bags or envelopes may be specially designed plastic bags, paper bags, or fabric bags. Bags or envelopes can be made to be tamper resistant (TR); to make it difficult for unauthorized entry. Often it is more important for them to be tamper-evident (TE); to indicate when an unauthorized entry has occurred.
Bags and envelopes are often closed by an integral pressure sensitive adhesive on the closing flap; removal of a release liner allows convenient closing of the bag. Several types of security features can be included in the flap structure which are designed to irreversibly indicate opening.[4][5][6][7][8][9][10]
Separate security tapes are also used. Tamper-indicating security seals employ a variety of mechanisms for operation, each with its own advantages and disadvantages.
Documentation such as labels for certified signatures for custody and chain-of-custody labels are frequently included.
Use
No one security feature can be considered as "tamper proof".[11] Layers of TR and TE features, as well as the broader security systems are needed to provide better assurance of security. All security products can be foiled by a knowledgeable person with sufficient time and with access to specialized tools, solvents, extreme temperatures[12] , other security bags, security tapes, etc.
See also
Notes
- "Sealed Bag deposit Process" (PDF). Northwestern University. 2016.
- Bank of America (2015). "Preparing and Packaging Cash Vault Deposits" (PDF). Harvard University.
- Warrington, D (April 1, 2008). "Evidence Packaging". Forensics.
- US 20060066096 A1, Shen-Nan Kan, "Adhesive tape structure for sealing and keeping secrecy", published 2006
- US 5918983 A, John Palazzolo, "Security Envelope", published 1999
- US 5788377 A, Vettor, "Tamper-resistant envelope", published 1996
- US 5108194 A, Raden, "Security bag", published 1992
- US 20050036716 A1, Geyer, "Tamper indicating security bag", published 2003
- US 5631068, Smith, "Self-containing tamper evident tape and label", published 1997
- US 4449631 A, Levenberg, "Tamper proof packaging", published 1984
- Rosette, J L (2009), "Tamper-Evident Packaging", in Yam, K L (ed.), Encyclopedia of Packaging Technology, Wiley (published 2010), ISBN 978-0-470-08704-6
- US5,798,169, Smith, "SELF. CONTAINING TAMPER EVIDENT SEAL", published 1998
References
- Rosette, J L, ”Improving Tamper-Evident Packaging: Problems, Tests and Solutions", 1992
- Yam, K.L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, ISBN 978-0-470-08704-6