If you don't get a post from someone here that can specifically inform you about Indiana State's reg's on this, then call Indiana's Department of Labor/wage and hour division and inquire.
Some States (mine included) expressly prohibit the employer from holding the employee financially accountable for "quality defects" (which would include cash drawers that come up short) due to carelessness, human error, or even theft. If an employer suspects an employee of theft or vandalism, their recourse to recoup their losses is via criminal and/or civil action, not through payroll deduction or a demand for payment.
I don't know Indiana's reg's on this, so do contact your State's DOL to get a definitive answer if you don't get one here.