ORS 166.291 Section 3 b:This ordinance is definitely not going to provide a free for all environment. You raise a good point about whether background checks are required by ORS 166.291 to be completed by Sheriffs office. It's not clear to me that they are but it is a question the Sheriff could probably answer.
The applicant must submit to fingerprinting and photographing by the sheriff. The sheriff shall fingerprint and photograph the applicant and shall conduct any investigation necessary to corroborate the requirements listed under subsection (1) of this section. If a nationwide criminal records check is necessary, the sheriff shall request the Department of State Police to conduct the check, including fingerprint identification, through the Federal Bureau of Investigation. The Federal Bureau of Investigation shall return the fingerprint cards used to conduct the criminal records check and may not keep any record of the fingerprints. The Department of State Police shall report the results of the fingerprint-based criminal records check to the sheriff. The Department of State Police shall also furnish the sheriff with any information about the applicant that the Department of State Police may have in its possession including, but not limited to, manual or computerized criminal offender information.