Accident books and data protection
You'll need to have an accident book in your meeting place and a record should be kept of all accidents that occur. This way you can spot common accidents and safety issues within your meeting place, as well as keeping notes of any incident, should you need to refer back to them.
The Data Protection Act does not prohibit the use of accident books, but simply requires you to ensure that the personal and medical details of your members are not accessible to others. In practice, the best solution is to have an accident book with detachable pages.
This makes sure that all accidents are recorded as usual, but that after the incident the record is removed from the book and stored securely by the leader. In this way, records are still available to the leader should they need to refer to them, but can't be viewed by others.