When in the 70's did the rock group Heart appear in the Grandstand at the Indiana State Fair?
Okay, I'm going to answer my own question. I just talked to someone in the office at the fairgrounds. They checked the records and found that Heart was here in 1978.
If you are based, and conducting your practice, in another state and are simply communicating with someone in Indiana you need not be licensed there. However if you intend to appear in court in Indiana or conduct your practice within the state you must be licensed in the state in which you intend to practice.