The Information Commisioners Office has released CCTV guidelines on where
you can point the cameras etc:

http://www.ico.gov.uk/upload/documen...practice_html/
index.html




Although the above link results in an error .... the source of the
information also states quite clearly :....

" The Data Protection Act does not apply to individuals' private or
household purposes. So if you install a camera on your own home to protect
it from burglary, the Act will not apply."

Hope this will be of interest.
Brad