Ind. Code § 22-11-17-2
(b) The commission may adopt rules under IC 4-22-2 that:
(d) A school that has one (1) or more employees may barricade or block a door for a period not to exceed three (3) minutes in the event of an unplanned fire alarm activation in order for a designated school official to investigate the alarm. The school must initiate evacuation and safety procedures after the three (3) minute period expires. However, the period may be extended in the event that an active shooter has been verified to be on the school's property.
As added by Acts 1982, P.L.140, SEC.1. Amended by P.L.169-1996, SEC.2; P.L.211-2018(ss), SEC.14.