This one has been the case for years. Even when the technical capabilities were only at theoretical level, any criminal with some brain used to switch off their

This one has been the case for years. Even when the technical capabilities were only at theoretical level, any criminal with some brain used to switch off their phones+ take out batteries before even having any discussions, not to mention commiting crimes. Today's phones can't be used anywhere in any context if people are involved in some criminal activities.