This reminds me of what happened to me at DUB. They did not give out forms to anyone and the kiosks were off. I spoke with a person and then a camera went off. He was annoyed that I did not look directly in the camera at first before taking another photo.

The thing that bothered me was that they did not describe what was happening--that they were using biometric identification, etc. It seemed like they tried to take photos in a manner discreet enough that many would likely have no idea what was happening.