How inmates are passing weapons through the SHU sliders. The very bottom is only sealed with caulking. The divider is hollow. Once the caulking is removed, items can be passed or stored by inmates.
This picture shows the caulking is the only item covering the hole. Inmates may use toothpaste to cover it.
The caulking has been removed on one side of the divider.
This is a picture of one of the weapons recover from the hole. Could not prove if it belonged to the occupants, either way it was a good find.