Book excerpt: In July 2014, the Committee launched an inquiry into the UK's relations with Hong Kong, 30 years after the signing of the Joint Declaration. As part of this inquiry, they planned to visit Hong Kong to speak to a wide range of interlocutors about the UK-Hong Kong relationship. The Chinese and Hong Kong authorities informed the Committee that they considered this to be interference in China's internal affairs and they urged a halt to the inquiry. On 28 November, the Chinese Deputy Ambassador informed the Committee that the Chinese government would take any necessary measures to prevent the Committee from visiting Hong Kong, forcing the postponement of the visit. It was made clear that the Committee would be prevented from entering Hong Kong, despite the fact that, as UK nationals, no visa for entry was required. The Committee considers the ban by China to be unprecedented, and sees it as an obstruction to the conduct of the Committee's parliamentary duties.