A state-run database of confidential police files has been shut down permanently over concerns it violated privacy laws. Yesterday, the board of the Minnesota Chiefs of Police Association, a nonprofit organization that owned the network, voted to delete the millions of records accessible through the Multiple Jurisdiction Network Organization. Supporters of the database say it helped trace sexual predators. Others saw it as a state-sanctioned invasion of privacy with questionable security protections. Dennis Delmont, the association's Executive Director, says the MJNO was created in 1992 as a way to facilitate the exchange of date between agencies.