Thames Valley Police have confirmed that strict security measures will be put in place for the wedding of Prince Harry and Meghan Markle on May 19, and have described the operation as “amongst the largest in [their] history.”

The police have confirmed that automatic number place recognition technology, CCTV, and hostile vehicle mitigation barriers to prevent a vehicle attack will also be put in place in the run-up to the wedding.

It’s also thought that a further security boundary will be placed around Windsor Castle and St George’s Chapel itself. An exact date for the implementation of these measures has not been revealed, for obvious security reasons. Residents and visitors can also expect to see an increased police presence on the streets of Windsor in the coming weeks, including armed and unarmed officers, search dogs, mounted police, and the National Police Air Service.

This should not be a source of alarm but reassurance, the police have said, as these “are all part of our measures to keep people safe.” Arriving in Windsor on the day, guests and spectators will be subject to a “screening and search” regime, similar to airport security checks, and “any items that may pose a risk to the public” will be removed.

Thames Valley Police Assistant Chief Constable David Hardcastle, the strategic commander for the royal 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 Queen Elizabeth‘s 90th birthday.

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“The wedding of Prince Harry and [Meghan] is no exception,” he continued. “We are working with our partners, local businesses, and the community to deliver a safe, secure and happy event for everyone.” A previous report estimated that security costs for Meghan and Harry’s wedding could top the $33 million spent on police measures for Prince William and Kate Middleton‘s wedding in 2011.

Along with members of the royal family and a number of VIP guests, the couple have also invited 2,640 members of the public to join the festivities at Windsor Castle, and will travel by coach through Windsor after the ceremony to greet gathered well-wishers.

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This post was written by Katie Rosseinsky. It originally appeared on our sister site, Grazia Daily.