; (2) is an eligible student for purposes of section 484; (3) is completing coursework and other requirements necessary to begin a career in law enforcement or criminal justice, or plans to complete such coursework and requirements prior to graduating; and (4) has not obtained an associate or baccalaureate degree related to law enforcement or criminal justice before receiving a Law Enforcement Education grant. (c) Selection The Secretary shall award grants under this subpart competitively on the basis of criteria determined by the Secretary by regulation. 422. Agreements to serve (a) Service agreements Each application under section 421(a) shall contain or be accompanied by an agreement by the applicant that— (1) if selected to be a law enforcement candidate, the applicant will— (A) serve as a full-time law enforcement officer for a total of not less than 4 years within 8 years after completing the course of study for which the candidate received a Law Enforcement Education Grant under this subpart; and (B) submit evidence of such employment in the form of a certification by the chief officer of the law enforcement agency or department employing the candidate upon completion of each year of such service; (2) in the event that a law enforcement candidate is determined to have failed or refused to carry out such service obligation, the sum of the amounts of any Law Enforcement Education Grants received by such candidate will be treated as a loan and collected from the candidate in accordance with subsection (b) and the regulations thereunder