Police have issued dozens of warning letters to members of the public against intrusions of privacy at the Sandringham Estate.
Over the last two years, 49 letters have been sent by Norfolk Police warning off any breaches of privacy at the home of the Royals in Norfolk.
They are told that while living on the estate, members of the Royal Family have a 'more than reasonable expectation of privacy'.
They add the 'understandable interest to film and photograph the Royal Family must be balanced with their right to a private life.
According to a Freedom of Information response to the BBC, 13 letters were handed out during 2013, and 36 by November last year.
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