Tellers used to have at least one packet of money in each of their drawers that have their serial numbers recorded. If they get robbed they are supposed to incl

Tellers used to have at least one packet of money in each of their drawers that have their serial numbers recorded. If they get robbed they are supposed to include it depending on the relative safety of the situation. I believe new bills from the federal reserve are also sequential and an inventory of those are probably recorded when they are accepted and counts are verified. At least that is how I remember it from about 15 years ago.