As used in this chapter, the following terms mean:
(1) "Commission", when not obviously referring to the POST commission, means a grant of authority to act as a peace officer;
(2) "Director", the director of the Missouri department of public safety or his or her designated agent or representative;
(3) "Peace officer", a law enforcement officer of the state or any political subdivision of the state with the power of arrest for a violation of the criminal code or declared or deemed to be a peace officer by state statute;
(4) "POST commission", the peace officer standards and training commission;
(5) "Reserve peace officer", a peace officer who regularly works less than thirty hours per week;
(6) "School protection officer", an employee of a school district or charter school who has been designated as a school protection officer.