Another four people have been stung with $1000 fines after police were told that up to 40 students gathered in a room within the university's accommodation blocks about 10pm on July 28.

So far, 22 people have been fined.

Riverina Police District Superintendent Bob Noble said these were among other infringement notices issued to people for breaking current public health orders.

"Some were for people who were here when they should not have been here," he said.

"Some were for not wearing masks ... we had reports of people planning informal unauthorised gatherings, parties and celebrations and will be following those up.

"One of them was a few people gathered at a house having a bit of a party."

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Superintendent Noble said Operation Stay at Home commenced at 12.01am on Monday and would be running for at least seven days.

He said the target would be those not complying with health orders, particularly those who are not at home when they should be.

"Our natural disposition towards leniency and discretion is likely to be somewhat watered down for a while," Superintendent Noble said.

"We really need the message to get through to people that compliance with the orders is critical if we are to diminish and slow down the spread of this virus."

Superintendent Noble said there were some challenges when dealing with this sort of operation, which can be compounded by being in a regional area.

He said that the women and men who sign up to police officers did not foresee this part of their roles.

Another challenge is the rules restrict movement to inside a local government area or within five kilometres from a person's home if they need to leave their LGA, which is often not feasible for rural residents.

"Providing you are travelling by the shortest, practicable route and you are doing so in a planned fashion and not calling in to see friends ... you will be fine," Superintendent Noble said.

Officers will be in uniform and plainclothes, patrolling Wagga and the smaller towns in the region.

The highway patrol is also monitoring the roads throughout the Riverina and the major highways.

"If you are doing the wrong thing, you will stick out like a sore thumb," Superintendent Noble said.

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