- Unless overridden, do not
+Description:
+
+When the value of this system preference is set to 'do', Koha will look at the
+patron's circulation history to see if they have checked this item out before.
+An alert will show up on the screen indicating that patron has indeed checked
+this item out. Staff will be prompted to allow the checkout to occur.
+If the vaulue is set to 'don't', Koha will not check the patron's circulation
+history. When the value is set to 'Unless overridden, do', this will check the
+patron's circulation history even if there are fines, fees, and/or holds on the
+patron's account. Lastly, if the value is set to 'Unless overridden, don't',
+Koha will not check circulation history regardless of fines, fees, and/or holds.
+
+ **Note**
+
+This system preference will not work for patrons that have chosen to anonymize
+their reading history.
+
.. _defaultpatronsearchfields-label:
DefaultPatronSearchFields