Police Scotland officer is being probed by bosses after branding lockdown rules “a joke” and demanding the public be allowed to “go back to normal” – despite soaring Covid-19 cases.Chelsea Renton, who is based at Cathcart Police Office in Glasgow, criticised lockdown laws she is paid to enforce and shared the outburst on her Instagram page.In a bid to downplay the effect of the virus, which has already killed 2510 Scots, she told her followers that “the recovery rate of Covid-19 far outweighs