5. Glossary

Malicious act

A malicious act is one carried out with the intention of causing harm.

DNA (marking)

This is a solution containing a unique DNA code, intended for use in marking intruders. The solution contains a fluorochrome molecule attached to synthetic DNA. The sprayed solution is invisible to the naked eye. This indelible marking becomes visible when subjected to ultraviolet light (blue fluorescence).

Anti-return; anti-passback, anti-timeback

Function that identifies the user entering and leaving a controlled zone, in order to authorize re-entry. This function prevents the identifier from being read twice in succession in the same direction: an entry identifier can only exit. Without anti-passback, there is no way to prevent a user entering a building and giving...