I just want to ask if there is a right order for baggage scanning? Because I have this system (picture below) and my level 2 scanners have a rating of 0% which is bring my rating down a lot since everything else is in the 90%s. Can anyone help me?
Your tier 2 scanners should only receive bags that are REJECTED by Tier 1 (currently they are receiving accepted bags but not rejected ones).
Similarly your 3 scanner should only receive bags that are REJECTED by tier 2 scanners).
Only bags rejected by tier 3 should be destroyed
This scanner setup is from my airport and works correctly with a 100% rating: