An exciting new feature in Koha 16.05 is the ability to make the last patron who checked out an item visible.
To turn on this setting, just follow these steps:
1) Go to the Administration module and click on Global System Preferences.
2) Select OPAC from the left navigation.
3) Scroll down to Privacy and change the StoreLastBorrower setting from Don’t Store to Store.
To find the last patron who checked out the item, search for the item in the catalog. Once you find the correct title, click on it. Then, click on Checkout History in the left navigation and voila! You will see the last patron who checked out this item.