Yes, false positive detection is a problem, and it's a problem that's part of a much larger set of problems that has to do with maintaining family contact and support. Prisons are not welcoming environments. They're not designed to be. Prison walls are designed to keep people out as much as they're designed to keep people in.
When people come into an institution, there's risk. There's a risk that they're bringing in contraband. There's a risk that they're bringing in weapons. It can be disruptive, so there is a security component around all of this, but that security component is now at the level where it is interfering with other policy imperatives for good corrections, which includes maintaining community contact and access to the outside world and which also includes supporting family relationships.
We have things out of balance. The introduction of technology into corrections has been very rapid. It's not just false positives on ion scanners, but other kinds of technology as well, that are increasingly making corrections much more high tech and low touch, thus much reducing opportunities for human interactions—