Currently, we can assign a catalog concern to any Koha account. It would help to only show and allow staff account (it could be all staff account, or linked to a specific permission) as these are the persons able to correct the problem. To reproduce : 1- Activate system preference CatalogConcerns (or OpacCatalogConcerns) 2- Create a catalog concern a- from the staff interface, go to a bibliographic record, click on "New" then "New catalog concern", fill in the title and click on "Submit". b- from the OPAC, go to a bibliographic record, click on "Report a concern", fill in the title and click "Submit" (you must be logged in). 3- Go to Cataloging, then Catalog concerns (there is also a link on the main page is there are concerns open). 4- Select a concern and click on "Details" 5- On the box change assignee, check that you can search for any account, even non staff account.