In the item search, libraries have many options to search their Koha for specific statues, however, checked out books is not an option. Could Koha add this to the Item Search feature? As a current workaround, a library could use the Item Search Fields (under Admin) to add 952$q- but it would be easier for libraries if it were in the options as the other statuses.
A search option will be part of bug 17748 that is in development. *** This bug has been marked as a duplicate of bug 17748 ***