The minimum standards of character shall be considered met only after the individual has been the subject of a satisfactory background investigation. The background investigation shall include a review of:
(a) The individual's trustworthiness, through inquiries with the individual's references and places of employment and education;
(b) A criminal history background check, which includes a fingerprint check through the Criminal Justice Information Services Division of the Federal Bureau of Investigation (FBI), under procedures approved by the FBI, and inquiries to State and Tribal law enforcement agencies for the previous five years of residence listed on the individual's application; and
(c) A determination as to whether the individual has been found guilty of or entered a plea of nolo contendere or guilty to any felonious offense or any of two or more misdemeanor offenses under Federal, State, or Tribal law involving crimes of violence; sexual assault, molestation, exploitation, contact, or prostitution; crimes against persons; or offenses committed against children.