Attempts to stop prison drone drug deliveries hampered by crumbling Victorian walls

Plans to install tougher netting and window grilles set back because walls cannot take extra weight, prison governors say

Weak and crumbling walls in Victorian prisons are hampering attempts to halt drones from delivering drugs and weapons to inmates.

Plans to install tougher netting and window grilles to stop drones from entering have been hampered because the walls have been unable to take the extra weight, prison governors said.