Well, an example is the ion scanner. When the ion scanner is used, there's no doubt in my mind that the machine doesn't make errors. We can detect on the individuals who come in, on their wallets or their jewellery or their clothing, quantities of drugs. We can detain them until the authorities come and arrest them with probable cause, or we can ask them to leave the institution. That has eliminated one problem. But what happens is that individuals come in for visits. They mule in their drugs, if you will. They are passed off. As soon as they get into V&C, the visitors and correspondence area, it's almost impossible to detect and recover them.
So, yes, those tools are invaluable and make the environment a safer environment to work in.