Tamper Evident bags & envelopes are very high security products which leave an irreversible sign of tampering, giving a clear call for action to the sender or receiver of the package.
There are different levels of security in tamper evidence as explained below (show security levels image here)
Manufactured using co-extruded polymers they can be of any color or transparent and offer very high strength. Once closed they cannot be opened without leaving a trace.
These bags are widely used for transit of highly confidential documents, precious items like Examination Papers, Passport, Evidence For Police Dept, Batch Samples, Credit/debit card, Currency, Confidential Documents, Aviation, Forensic Labs, Gold Loan etc..