Indiana Code Title 35. Criminal Law and Procedure § 35-33.5-2-3

Sec. 3. (a) Allegations of fact in an application for a warrant submitted under this chapter may be based either upon the personal knowledge of the applicant or upon information and belief.

(b) If the applicant personally knows the facts alleged, the applicant shall state that the affidavit is based upon personal knowledge.

(c) If the allegations of fact are derived in whole or in part from the statements of persons other than the applicant:

(d) If the applicant's information and belief is derived from:

the applicant shall attach to the application a copy or detailed description of the tangible evidence or recorded oral evidence.

(e) Affidavits of persons other than the applicant may be attached to the application if the affidavits of other persons tend to support any fact or conclusion alleged in the application.  An affidavit attached to the application under this subsection may be based either on personal knowledge of the affiant or on information and belief.  However, if the attached affidavit is based on information and belief the affiant shall state the source of, and the reason for, the information and belief.