I'm currently adapting our borough's Model Child Protection Policy for our school - the paragraph on photographs says:
"PHOTOGRAPHING CHILDREN
We understand that parents like to take photos of or video record their children in the school play, or at sports day, or school presentations. This is a normal part of family life, and we will not discourage parents from celebrating their child?s successes.
However, if there are Health and Safety issues associated with this - i.e. the use of a flash when taking photos could distract or dazzle the child, and cause them to have an accident, we will encourage parents to use film or settings on their camera that do not require flash.
We will not allow others to photograph or film pupils during a school activity without the parent?s permission.
We will not allow images of pupils to be used on school websites, publicity, or press releases, without express permission from the parent, and if we do obtain such permission, we will not identify individual children by name.
The school cannot however be held accountable for photographs or video footage taken by parents or members of the public at school functions."