We use Tamper Evident licensed packs for our products: it is a reporting system, especially for blind people. It guarantees packs entirety through tactile and chromatic indications or it reports the pack violation.
“The pack entirety is guarantee of security.”
For this reason, since the purchase, it is important establishing that the pack is properly closed with no tampering.
Even after, Tamper Evident system offers another confirmation about the untouched pack until the first opening moment.