The operation for Prince Harry and Meghan Markle’s big day will be “amongst the largest in Thames Valley Police’s history”, the force said, as it revealed detailed plans for the event on 19 May.
A broad range of visible security measures will be in place, such us the extensive network of automatic number plate recognition (ANPR) technology, CCTV and hostile vehicle mitigation (HVM) barriers.
Residents, local businesses and visitors to Windsor will see armed and unarmed officers, police dogs, mounted police and the National Police Air Service in the run up to the wedding.
The marriage will take place at St George’s Chapel, Windsor Castle, followed by a carriage procession through Windsor and a reception in St George’s Hall.
On the day of the wedding itself, visitors may be stopped and checked and British Transport Police will be patrolling train stations and carriages.
Those arriving in Windsor by train will be screened and searched in airport style checks.
There will also be Royal Borough of Windsor and Maidenhead community wardens and ambassadors throughout the town centre.
Thames Valley Police says visitors and residents should remain vigilant at all times as they “are our extra eyes and ears”.
More than 100,000 people from around the world are expected to travel to Windsor for the wedding and celebrations.
The force says the majority of those working on the operation will be from Thames Valley but other forces, such as British Transport Police, the Metropolitan Police and Surrey Police, will also be involved.
Thames Valley Police assistant chief constable David Hardcastle, strategic commander for the wedding, said: “We are proud to police the Royal Borough of Windsor and Maidenhead.
“The force has a long history of policing Royal events from the annual Windsor Garter Ceremony to state visits and more recently Her Majesty the Queen’s 90th birthday.
“The wedding of Prince Harry and Ms Markle is no exception.
“We are working with our partners, local businesses and the community to deliver a safe, secure and happy event for everyone.”
The force assured residents that day-to-day policing and the response to incidents would not be affected by the Royal wedding.
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The Queen attended the annual Maundy Service on Thursday at St George’s Chapel where Harry and Meghan will tie the knot.
Prince Philip missed the centuries-old event due to a problem with his hip, it is understood.