The owner and staff of a massage parlour and a returned Bali traveller are among the first people to be hit with fines under new coronavirus laws.
Police issued a $5000 fine to the owner of the city massage parlour and $2000 fines to three female workers.
In a separate incident, a woman, 65, arrived at Sydney International Airport on a flight from Bali.
Police said she was advised she was subject to a Public Health Order and was required to quarantine for a 14-day period.
After receiving information that the woman had contravened the order, police went to her home in the Lake Macquarie area and issued her with a warning for breaching the order.
When police received information the woman had later left her home, they returned and handed her a $1000 fine.
Minister for Police and Emergency Services, David Elliott, said the rules could not be clearer and they apply to everyone.
"No one is above the law. If you decide to ignore a direction, you will be caught, and you may very well find yourself slapped with a hefty fine," the Minister said.
"The fact that people are still not complying is the reason why we have police out in full force enforcing these directions.
"This behaviour is not only reckless and stupid, but potentially deadly."
Anyone with information about members of the community breaching Public Health Orders or otherwise contravening the Public Health Act is urged to report online to Crime Stoppers: https://nsw.crimestoppers.com.au.
Information is treated in strict confidence. The public is reminded not to report crime via NSW Police social media pages