Locked-down Britons are today questioning if the Covid crackdown has gone too far after a jogger was stopped by a marshal for 'breathing heavily'. Bizarre footage shows a perplexed jogger being collared by a 'Covid marshal' while on a riverside run in west London. Asked why he is being stopped, the jogger is told by the high-vis wearing security guard: 'Because you are breathing heavily'. Baffled Gary Purnell, who filmed the incident, described it as 'the craziest thing in the world'. But council chiefs have today defended the decision. Hammersmith and Fulham Council leader Stephen Cowan said he would 'offer no apology' for discouraging joggers from using the riverside walk at peak-times.