The number of visitor visas issued is recorded centrally, but these are also used for some business activities, medical reasons such as private healthcare and academic research, as well as for tourism. While other sources provide some detail, again they fail to offer the whole picture. The International Passenger Survey does record the reason for entry, but it will be months before the findings for the lockdown period are published. The Civil Aviation Authority publishes nearly up-to-date data on passenger movements. But it combines both incoming and outgoing numbers and doesnât provide a breakdown for reasons for entry. The Times claims also highlight the woeful lack of information from the Home Office on Border Force enforcement of the international travel regulations, with no data published since September.