Indiana Code Title 5. State and Local Administration § 5-2-17-8

Sec. 8. (a) If a missing person has not been located thirty (30) days after the date of the missing person report, the law enforcement agency that received the report may obtain, if available, the following information and material:

(b) A health care provider (as defined in IC 16-18-2-163) that discloses information in good faith under subsection (a) is immune from civil liability for disclosing the information.  This subsection does not apply to acts or admissions amounting to gross negligence or willful or wanton misconduct.

(c) A law enforcement agency may obtain the information described in subsection (a) even if thirty (30) days have not elapsed from the date of the missing person report.

(d) Notwithstanding subsection (a), this section does not permit a law enforcement agency to obtain information or material without a search warrant or another judicial order that would otherwise be required to obtain the information or material.