> How about just banning prison visits. That would solve a lot of other contraband problems too. Isn't it common for prison visits that the visitor is separate

> How about just banning prison visits. That would solve a lot of other contraband problems too. Isn't it common for prison visits that the visitor is separated from the prisoner by some barrier (e.g. some acrylic glass barrier) so that it is nearly impossible to hand over contrabands, where the visitor is in an area that no prisoner can enter (so that the visitor cannot leave some contraband behind). And even if there is something to hand over to the prisoner (either from a visitor and mail) I think it will have to go through security clearance. This shows that any way that a visitor uses to hand over some item can also be used via mail - so banning prison visits avails to nothing.