Indiana Code Title 22. Labor and Safety § 22-5-3-1

Sec. 1. (a) A person who, after having discharged any employee from his service, prevents the discharged employee from obtaining employment with any other person commits a Class C infraction and is liable in penal damages to the discharged employee to be recovered by civil action; but this subsection does not prohibit a person from informing, in writing, any other person to whom the discharged employee has applied for employment a truthful statement of the reasons for the discharge.

(b) An employer that discloses information about a current or former employee is immune from civil liability for the disclosure and the consequences proximately caused by the disclosure, unless it is proven by a preponderance of the evidence that the information disclosed was known to be false at the time the disclosure was made.

(c) Upon written request by the prospective employee, the prospective employer will provide copies of any written communications from current or former employers that may affect the employee's possibility of employment with the prospective employer. The request must be received by the prospective employer not later than thirty (30) days after the application for employment is made to the prospective employer.