It is helpful to display barcode in search result in librarian interface. Its easy to identify barcode instantly. See the screen shot below, https://picasaweb.google.com/lh/photo/_B61M4JGNiYtbkVh4tQ-jQ?feat=directlink
The link to the screenshot is broken. We currently don't display the barcode in a lot of places. Most of the time the callnumber is displayed which helps identify items in most libraries sufficiently. I think displaying more information on the result list in staff might make the list harder to read - maybe this could be a configuration option where you pick what to display for each item?