From Ametrine Lavender, Hebden Bridge, West Yorkshire, UK
I read your article on using gait to identify people with great interest (19 September, p 36). I am prosopagnosic, or face-blind, along with up to . Some prosopagnosics have been using gait and posture to help us identify people for pretty much all of our lives.
Your article says that gait recognition requires a huge amount of computing power. Maybe law enforcement agencies could employ prosopagnosics alongside or instead of computerised systems?
