This is a big problem, and absolutely should not be happening: people have been coming to the desk complaining because course reserve items are still checked out to them and are generating bills.
DO NOT put books on the return trucks unless you are SURE you have checked them in.
When 24/7 brings down books in the morning, double check that they have been checked in and re-sensitized.
If you encounter a problem with a checked-out book on the reserve shelves, let us know so that we can deal with the overdue fine before it goes over to Cashiers – which is a YUGE problem.
So, until further notice, double check (check them in and re sensitize) all Reserve books before putting them back on the shelves.