Two-page document praises loyalty of Yang Tengbo and says he is ‘at very top of tree’ within Duke of York’s network

The full text of a gushing letter written by Prince Andrew’s adviser to the alleged Chinese spy Yang Tengbo reveals how intimate the relationship between the two had become in the aftermath of the prince’s disastrous 2019 interview with the BBC.

Extracts from the correspondence were quoted in a judgment upholding a decision to exclude Yang from the UK last month, but the two-page letter written by Dominic Hampshire at the end of March 2020 is eye-catching for its tone.