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Has gait analysis been studied by people other than the ones selling gait monitoring equipment? It smells to me like bite mark analysis, blood splatter analysis, polygraphs, and other "miracle" technologies/techniques that turned out to be horsecrap.

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There are people I know that I can recognize by the way they walk, so the idea is at least plausible. I think the main problem is/will be from using the analysis inappropriately.

It's one thing to narrow down a city-sized population to a list of 50 people known to walk with a similar gait, and then follow up with other forms of investigation before drawing conclusions. It's another for a cop to look at the top match and go arrest that guy, as they've done more than once with facial recognition.

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