The issue focused on how police might tell if a subject was willing to fight and what would happen if that person could not be determined.

The technology can work as an electronic tag in the suspect's clothing. The device would record the activity of the subject and could also record "listening," or "do you want to fight?" devices in the subject's clothing.

The technology has been used in New York and London.

The technology can also be used to determine if a subject is likely