[robhawkes]

Thank you for the link, it's important that this issue is discussed in the open rather than people getting scared of the technology and possible repocussions.

However, I also think it's important to note that I am not a lawyer in privacy. I am a developer who wants to help out. I'll leave the legality and policy behind privacy to the professionals.

At the end of the day I would have absolutely no problem with my publicly accessible profile image being used in facial recognition in these circumstances. Imagine if I was a potential witness of something? Is it then OK to use facial recognition in that case?

[Louis-Remi]

Why using face recognition on witnesses to get them to tell what they know? If they do want to help the police, they will, if they don't want, how can that help?

And what else than "potential witness" will you identify? None of these pictures could be used as evidence.