Four women have been arrested for allegedly flouting restrictions on massage therapists that have been in place since March.
Three women were allegedly working as massage therapists, while police say the fourth was operating the business.
One of the four women had already been issued a fine for flouting the Emergency Management Act on Sunday 12 April.
The Croydon Park business was shut down on Monday 18 May after receiving complaints from members of the public about the operation.
Meanwhile, over a dozen people have been fined by SA police for breaching the state’s COVID-19 restrictions on gatherings.
Police were called to a street in Whyalla Norrie where a fight had broken out, finding between 30 and 40 people on the street.
Those at the scene were told about restrictions on gatherings before police left the location.
Later that night, police were called back to the same address because of a noise complaint. On arrival, they found a group of people celebrating a birthday.
13 people were issued with a $1,000 fine for gathering in a group larger than 10 people.
The news comes as the state records its thirteenth consecutive day with no new confirmed cases of the virus.