With all this fuss over a referee attempting to ban parents from taking photographs at a local Kent football match, I thought I'd help everyone get the facts of photography in a politically correct digital age.
Firstly the emphasis on the Protection of Children Act (1994) is on the distribution and storage of "Indecent" images and so taking school sports / school play 'snaps' would not fall into this category but many schools are being overzealous in their attempts to remove any risk of liability for absolutely anything these days.
The Information Commissioner has published a document that reveals the myths of the Data Protection Act (DPA) in regard to photography. You can find it here.
Basically, for most examples, there's nothing that prevents you taking photographs - e.g. football games, public events etc and as far as I can see, it's never been tested in court. It's only when images are stored in relation to identity, e.g student ID cards, that issues regarding to legislation, like the DPA come into force. But then I'm no lawyer. Best read the guidance from the Information Commissioner's Office!