WELLINGTON, NEW ZEALAND - APRIL 16:  Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge visit the Royal New Zealand Police College in Aotea, Porirua City on April 16, 2014 in Wellington, New Zealand. The Duke and Duchess of Cambridge are on a three-week tour of Australia and New Zealand, the first official trip overseas with their son, Prince George of Cambridge.  (Photo by Danny Martindale/WireImage)