The Legislature shall have the power, by general law, to provide for the payment of assistance by the State of Texas to the surviving spouse, minor children, and surviving dependent parents, brothers, and sisters of officers, employees, and agents, including members of organized volunteer fire departments and members of organized police reserve or auxiliary units with authority to make an arrest, of the state or of any city, county, district, or other political subdivision who, because of the hazardous nature of their duties, suffer death in the course of the performance of those official duties. Should the Legislature enact any enabling laws in anticipation of this amendment, no such law shall be void by reason of its anticipatory nature.