Beijing has rolled out the red carpet for a delegation of Hong Kong police officers invited to attend events marking National Day on Tuesday, the latest endorsement of the force’s handling of anti-government protests in the city.The group of 10 police officers arrived in the Chinese capital on Sunday morning and visited the Great Wall on Monday as part of their itinerary to celebrate the 70th anniversary of the People’s Republic.State media reports focused on Sergeant Lau Chak-kei – nicknamed …