Last week, British Prime Minister Boris Johnson said that people should wear masks in confined spaces such as shops, and that the government would provide more details in the next few days about what "tools of enforcement" would be used. Johnson made the comments while visiting ambulance staff in central London as part of an announcement to double criminal sentences wherever emergency workers have been assaulted.

A protest was organized by "Keep Britain Free" movement on Sunday against face coverings becoming mandatory. From July 24, face masks will be mandatory in shops and supermarkets in England.