I have a question regarding when a 'model release form' is required within the UK. Googleing around it seems that if you take a picture (anywhere) in which an individual is 'clearly recognizable' then you have to obtain their permission before you can 'publish' the picture (otherwise, I assume, they could sue you for damages).

Are there any experts on APUG that can confirm or advise on this? On the face of it this is very restrictive. Street photography is the obvious example. Are street photographers taking a risk?!

There appears to be a get-out clause for press photographers. If the picture is considered a news item then it is not covered by the legislation.