A group at the New York University School of Law says it has made a public records request to the State Board of Elections for purged voter lists to find out whether voters have been wrongly dropped from the rolls.

The Brennan Center for Justice is studying whether several states wrongly purged voters from their records, Barb Barrett reports.

The center’s investigators looking at states, including North Carolina, because they have had flawed voter purges or registration practices in the past, according to a news release from the Brennan Center.

The group says many states purge voter rolls in secret, without notifying voters.

"There really are no effective national standards to govern voter purges, and the result is a chaotic, whimsical approach to the maintenance of voter rolls," said executive director Michael Waldman.