Sydneysiders who flout new mandatory mask rules from Jan 4 risk a $200 fine as the public health order comes into effect. But Health Minister Brad Hazzard has asked NSW police to exercise discretion in handing out fines to those who ignore the new rules. Masks are mandatory in shopping centres, on public transport, in places of worship, hair and beauty premises, entertainment venues such as cinemas and other indoor venues like post offices and banks. Hospitality workers are also required to wear one. Mandatory masks have been introduced as a suburban bottle shop causes a headache for authorities trying to limit the spread of coronavirus. BWS in Berala, in the city’s west, was an exposure site for up to nine hours a day every day between December 22 and New Year’s Eve, skipping only Christmas Day. Tens of thousands of people have been affected. Most who dropped by the …