Indiana Code Title 27. Insurance § 27-1-22-6

Sec. 6. (a) A “bad-faith filing”, as used in this chapter, means a rate filing made by any filer who, in bad faith, files a rate which it knows, or should know, is grossly inadequate for the insurance coverage provided, and which is filed and used for the purpose of unfairly obtaining a particular risk or limited group of risks, and which is available only to such risk or limited group of risks.

(b) At any hearing conducted under this section, the burden shall be on the filer to prove that such filing is not in violation of this section.  If, after such hearing, the commissioner finds that the filer has failed to prove that such filing is not in violation of this section, based on the evidence adduced at the hearing and made a part of the record, he may order all policies written under such bad-faith filing to be rewritten at an approved rate from the date of the inception of such policies of insurance, or all such policies shall be cancelled pro rata in accordance with the policy provisions.

(c) Nothing in this section shall be deemed to supersede the provisions set forth in section 24 of this chapter.