Thank you for your response and the opportunity to assist you further.
The Montana Dept. of Justice
states that only law enforcement agencies may obtain full criminal
histories even with a fingerprint check. See DOJ access site here http://www.peoplesmart.com/criminal-records/mt-department-of-justice
The site confirms that disclosure includes arrests for felony or misdemeanor charges and court information relating to those cases, but public access does not include deferred or dismissed charges. However, private background check companies may investigate and obtain court records which would reflect dismissals and discharges, especially if an arrest is disclosed on an application. Montana's administrative rules state that questions about an applicant's arrest record could lead to suspicions of discriminatory intent, and therefore should not be asked, but it is not prohibited.
The arrest and disposition might show up in an FBI background check. If the fingerprints are related to an arrest, the FBI Criminal History Summary includes name of the agency that submitted the fingerprints to the FBI, the date of the arrest, the arrest charge, and the disposition of the arrest, if known to the FBI. The process to obtain criminal records from the FBI can be found here http://www.fbi.gov/about-us/cjis/criminal-history-summary-checks
The FBI's authority to disclose criminal history information in employment background checks, however, is limited to officials of state and local governments for employment, licensing, which includes volunteers, and other similar non-criminal justice purposes, if authorized by a state statute which has been approved by the Attorney General of the United States.
Let me know if you need any further information.