Most sources I have read over the years suggest the document retention timelines for employee files should be three years after the person leaves the organization.
Perhaps you should set to permanent the retention timeline for reference checks on applicants. Might want to extend that to all the materials that support your screening of employees.
That is the suggestion from Richard Hammar in his March/April issue of Church Law & Tax Report. (If your interest in this post has lasted this far into the discussion, you probably ought to be reading that newsletter, available from Christianity Today.)
The reason for permanent retention?