Indiana Code Title 3. Elections § 3-11-13-31.5

Sec. 31.5. (a) The exterior of a voting booth or compartment and each area of the polls must be in plain view of the precinct election board. Each voting booth or compartment shall be placed so that a person voting on the opposite side of the railing or a person on the outside of the polls cannot see or determine how a voter votes. The inspector, judges, and poll clerks may not remain or allow any other person to remain in a position or near a position that would permit them to see or ascertain how a voter votes.

(b) Only one (1) voter may occupy a booth or compartment at one time. Booths shall be constructed and arranged so that all members of the precinct election board can see whether more than one (1) voter enters a booth at any one time. However, a voter who is a parent, grandparent, or other person caring for a minor child may take the child into the voting booth.