After a low in cases at the end of June, the ONS estimated infections had been rising slightly in July.
Some Dorset car parks were full by mid-morning, with four "hot spots" showing on a new mobile app.
Chancellor warns there is "always the risk" holidays may be disrupted, as virus cases climb in France.
Keeley Bunker, who was celebrating her 20th birthday, "trusted" Wesley Streete to walk her home.
Eric Joyce had a video clip on a device showing the "sexual abuse of young children", a court hears.