Date Time Share Perth’s 5-day ‘circuit-breaker’ lockdown isn’t an overreaction to a single case – it’s basic common sense Perth and the Peel and South West regions of Western Australia will go into a five-day hard lockdown from 6pm local time on Sunday, after one new local COVID-19 case was detected in the state. Author Erin Smith Associate Professor in Disaster and Emergency Response, School of Medical and Health Sciences, Edith Cowan University The new case is a male security guard who was working on the same floor as a person in quarantine with the UK coronavirus variant.