Responding to the Health Secretary's statement at today's coronavirus press conference, Acting Leader of the Liberal Democrats Ed Davey said:
"With more than 10,000 families now grieving for loved ones who have lost their lives due to Covid 19, we must continue to do everything we can to prevent the spread of this virus and protect those working on the frontline.
"Proposals laid out today to allow people to voluntarily provide data through an NHS app to improve contact tracing are likely to be crucial in enabling the UK to move out of the lockdown at some point in the future. This is therefore a welcome step to protect public health.
"However, there must be complete transparency around how the data will be stored and used, coupled with watertight guarantees that data will be anonymised, kept for the shortest possible time, and won't be shared between government departments.
"Any proposal on the use of mobile phone data or other technology to track people must also be scrutinised properly by MPs before a final decision is made, further strengthening our argument that Parliament should be recalled urgently."