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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. When used to contain items related to a crime, special evidence bags are used. Authentication of signatures and chain of custody are often required.
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. When used to contain items related to a crime, special evidence bags are used. Authentication of signatures and chain of custody are often required.
Construction
Security bags or envelopes may be specially designedplastic bag
A plastic bag, poly bag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile. Plastic bags are used for containing and transporting goods such as foods, produce, powders, ice, magazines, c ...
s, paper bags, or fabric bags. Bags or envelopes can be made to be tamper resistant to make it difficult for unauthorized entry; often it is more important for these to be tamper evident, 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.
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". 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, other security bags, security tapes, etc.See also
* Currency packaging * Dye pack * Evidence management *Provenance
Provenance (from the French ''provenir'', 'to come from/forth') is the chronology of the ownership, custody or location of a historical object. The term was originally mostly used in relation to works of art but is now used in similar senses i ...
* Package pilferage
* Security seal
* Traceability
Notes
References
* Rosette, J L, ”Improving Tamper-Evident Packaging: Problems, Tests and Solutions", 1992 * Yam, K.L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, {{bags Bags Evidence Theft Security Security technology Envelopes Money containers