The nearly impossible job of picking up when the peculiar become pathological

AI Summary

The article examines how police try to identify people whose unusual obsessions may develop into violent behavior. It describes the work as difficult and resource-intensive, with no simple way to distinguish eccentricity from a genuine threat.

It is labour-intensive and, in reality, like trying to stop a river with a tea-strainer. How police try to identify the obsessed who have the potential to become violent.