Upon investigation the department shall take action to prevent abuse and shall have the authority to do any or all of the following:
(1) Resolve the matter in an informal fashion as is appropriate under the circumstances;
(2) Exercise its right of entry under section 346-229;
(3) Seek an order for immediate protection;
(4) Seek a temporary restraining order;
(5) File a petition with the court under this part; and
(6) Seek any protective or remedial actions authorized by law.