you thought they could not be any worse they succeed. If pinged it is not legally binding says a minister, then Downing Street says you should isolate if pinged. But critical workers will be exempt, as long as they take daily tests and are negative. But who is a critical worker is not stated. Any tax payer could claim to be. critical worker? What about a worker in a food shop? Or a shelf stacker in a supermarket, or the lorry driver who delivers the produce, or the waste collection operatives, any public transport worker, any NHS worker, Post Officer worker, delivery driver, and in this heat an ice cream van worker.