The pilot events included 21,000 people at the FA Cup final at Wembley Stadium, plus two other matches at the venue.

There was a rave with 3,000 clubbers at the Circus nightclub in Liverpool, which saw partygoers not having to wear a mask.

Others included the Brit Awards, which hosted 4,000 people at London‘s 02 Arena, and the snooker world championships at Sheffield‘s Crucible Theatre