During the trial, messages were revealed that evidenced Wai's closeness to former security officials from Hong Kong. In a communication sent to Eddie Ma, former head of intelligence of the Hong Kong police, Wai stated that he would not allow the entry of ''cockroaches'', a term used by pro-government sectors to refer to pro-democracy protesters.
The investigation also revealed that the accused paid special attention to British political figures critical of China and Hong Kong. Among them was Conservative MP Iain Duncan Smith, one of the most active parliamentarians in denouncing human rights abuses by Beijing.

Another notable aspect of the case was the involvement of Matthew Trickett, a former British marine and Border Force official who collaborated with Wai on some surveillance tasks. According to prosecutors, Trickett was sent to follow renowned activist Nathan Law during a public intervention at the Oxford Union in November 2023. Law was one of the individuals for whom the Hong Kong government had offered a reward of one million Hong Kong dollars for information leading to his capture.
Trickett was found dead in May 2024 in a case that authorities consider a ''suspected suicide.'' The investigation into his death will continue in a court hearing scheduled for November.
After the sentences were announced, the head of the British Crown Prosecution Service's Counter-Terrorism Division, Bethan David, stated that the conduct of the accused was ''deliberate and coordinated'', and assured that the case sends a clear message about the UK's determination to combat transnational repression and foreign interference.












