Letters have been sent out by Kate and William's communications secretary calling for "acts of harassment and breaches of privacy to cease".
The royal couple left their London home of Kensington Palace on Wednesday bound for Anmer Hall with toddler George and new baby Charlotte who was born last Saturday. The letters, distributed by Norfolk Police and signed by the Cambridges' communications secretary, say the couple have "a more than reasonable expectation of privacy".
It called for "acts of harassment and breaches of privacy to cease".
The letter went on: "There have in the past been a number of intrusions into the privacy of the Royal Family which in the main have been as a result of professional photographers using long-distance lenses, not only to observe the Royal Family, but also to photograph them going about their activities on the estate."
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