A very interesting video that illustrates a situation many photographers, myself included, have found themselves in from time to time.
Most photographers- and as this video illustrates security guards- are unaware of their “real” legal rights with regards to photographing in public spaces and being photographed in public. There are countless articles online regarding this topic but I have found this one (see link below) to be especially good… of course the law varies from country to country so do your homework first and then shoot with confidence.
http://www.danheller.com/model-release.html
Viva la Revolution- Stephen