The searches took place after the former prince was sensationally arrested on Thursday on his 66th birthday and taken to Aylsham police station, where he was questioned for 11 hours.
Royal Ascot, which takes place in Windsor Great Park in June, is one of the main fashion events in the high society calendar, and statement hats are always the focal points of racegoer's looks.
The Princess of Wales's glamorous BAFTAs look served as a 'quietly strategic reminder of stability' as the Royal Family has been plunged into chaos, a stylist has said.
The former Duke of York left the 30-room Windsor mansion where he had paid 'peppercorn rent' for decades under the cover of darkness at the start of this month.
While Kate and Beatrice beamed as they waved confidently to crowds of well-wishers, video footage captured of their carriage ride also highlighted a 'tension' between the royal women.