South Australia has decided against imposing increased local COVID-19 restrictions despite the ongoing outbreak in Victoria.
The state's transition committee met on Tuesday and resolved to keep the current level of measures in place.
They largely restrict most venues, including pubs, restaurants and other business to 75 per cent of their usual capacity.
But Police Commissioner Grant Stevens said tougher measures could be imposed if the situation across the border continued to deteriorate.
"There was a conversation on what those trigger points may be that would see restrictions coming back into place," he said.
"We can't ignore the fact that there are very concerning situations in Victoria.
"The number of exposure sites is significant."
Mr Stevens urged anyone with any virus symptoms, no matter how minor, to get tested, expressing some concern at the relatively low level of tests being conducted.
He said that would give health officials the earliest possible opportunity to get on top of any community cases.
The commissioner said should the situation in Victoria get worse, local authorities could consider imposing fresh restrictions on the movement of people around SA.
"People need to appreciate just how seriously we take this," he said.
"But at this point, we're confident the community will respond in the manner we need them to."
Victoria recorded three new locally acquired coronavirus cases overnight, taking the total number of cases in the current outbreak to 54.
Currently, all Victorians are not allowed to travel to SA with the exception of people who live within 70 kilometres of the border, who can come and go as usual.
SA reported no new virus cases on Tuesday with 5334 tests conducted in the previous 24 hours.
The state has just two active infections, both returned travellers in hotel quarantine.
However, health officials are still to hear from almost 30,000 people who travelled to SA before the ban and were considered potentially at risk.
They were among about 50,000 people sent text messages to clarify their recent movements.
Mr Stevens said it might be that many of those yet to respond had since returned to Victoria.