The parents of two victims of the Parkland school shooting are seeking a court order to clarify the breadth of a state law imposing heavy financial penalties on plaintiffs that sue gun makers and retailers.

The Broward Circuit Court lawsuit filed Wednesday seeks a declaratory judgment saying the victims’ parents would not risk payment for stock price drops and lost company revenue under a 2001 Florida law that explicitly bars suits by public agencies against the gun industry if their products are used illegally.