The purposes of this part are to:
(1) save the lives of persons who have experienced an opioid-related drug overdose by providing the broadest possible access to lifesaving opioid antagonist medication, including expired opioid antagonist medication;
(2) facilitate the availability and use of opioid antagonist medication by providing professional, civil, and criminal immunity to persons who prescribe, dispense, distribute, or administer an opioid antagonist; and
(3) encourage persons to seek medical treatment in an opioid-related drug overdose situation by providing immunity from prosecution for certain criminal offenses for persons who seek or receive the medical treatment.