05/03/2020 (Sun) 19:27:50
The Labour Party's Nick Thomas-Symonds said there were shortcomings in the government's plan as not everybody has a smartphone and there are issues around privacy and security.
"There are people for whom location services on their mobile devices are turned off for particular safety reasons," he told Sophy Ridge on Sky News.
The government has also promised to recruit 18,000 people to do manual contact tracing, as it pursues a track-and-trace strategy with a view to lifting the lockdown.
Using Bluetooth, the free smartphone app will track when its users come into contact with each other, automating the tracing process.
If a user develops coronavirus symptoms, the disclosure could trigger an anonymous alert to users with whom they have recently had contact, enabling those people to go into quarantine or be tested.