Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, which date a person should follow in the event that self-isolation end dates differ between the NHS Track and Trace app and the NHS text message service; and what steps he will take to publicise his guidance on this issue.

If the app advises a person to self-isolate for a shorter period of time than the period advised by contact tracers, they must self-isolate for the time advised by contact tracers in order to comply with the law. If the app advises a longer period than the period advised by contact tracers, then the additional time period identified by the app is advisory but is a recommended precaution.