In our experience, there are 3 mistakes HR teams commonly make in criminal record searches:
1) Google the applicant (and God forbid) finding a criminal record outside of the law (FCRA)
2) Searching only local records and missing other areas of residency or work
3) Not doing a criminal check at all!
Take a look at this brief video from the Society for Human Resource Management (SHRM), which highlights 6 really helpful tips for using criminal records in the hiring decision. https://www.youtube.com/watch?v=yZQCr1dSW-M&feature=youtu.be