A resident today spotted a couple park their camper van with boat in the car park near the Katherine Visitor Centre and head into Woolworths.

"They came back with a trolley of things they had bought," she said.

The resident said the vehicle had Victorian number plates and she was concerned they had not yet quarantined.

She said she had seen other caravans arriving and tourists in the shopping centre.

NT border controls eased just over a week ago to allow visitors to self quarantine which would include some Katherine caravans parks provided the visitors had self-contained caravans or RV's.

"I hope they are not going shopping before they go into quarantine," she said.

"There are a lot of interstate plates around."

It may well be the visitors have already done their 14-day quarantine in other areas, even in hotels, before they began moving around the NT.

Katherine Times has approached the authorities about compliance activities in Katherine and the resident's claims on arriving tourists.

The NT Government spokeswoman said new arrivals are required to travel directly to their place of self-quarantine.

"Territorians can contact NT Police on 131 444 to report cases of suspected non-compliance with quarantine regulations," the spokeswoman said.

The resident questioned however whether new arrivals who chose to quarantine had the necessary local help to provide them with groceries and other necessities during their 14 days of isolation.

Until July 17 all interstate arrivals can complete 14 days of mandatory self-quarantine at a place of their choice and at their own cost.

On crossing the border, they need to list their place of self-quarantine and how they plan to get there.

They can only self-quarantine in appropriate accommodation in an approved regional centre which includes Katherine.They cannot camp in roadside rest stops or in parks or reserves.

The quarantine period begins at the time of arrival to the Territory (as confirmed on the border arrival form) and ends at midday on the 14th day after arrival.

Visitors have a maximum of 48 hours to get to their quarantine location where they will be subject to compliance checks and can be fined for breaches of quarantine.

NT Chief Minister Michael Gunner made the point in his announcement of the June 15 easing of restrictions that the move was particularly for Territory families to reunite by being allowed to quarantine at home.

Mr Gunner has announced all border restrictions would be dropped from July 17.

The NT's three-week dry season school break begins on Friday.

Police have issued a further four infringement notices for failing to abide by the Chief Health Officer Directions issued under section 56 of the Public and Environmental Health Act 2011.

Compliance teams yesterday were conducting a number of checks on people who entered the Territory after the easing of quarantine restrictions, allowing people to nominate a place of quarantine rather than hotel accommodation.

Four people, aged between 24 and 44, were all absent from their homes at the time of checks. They were contacted by police and were unable to provide a lawful justification as to why they were not quarantining.

Acting Commander Shaun Gill said, "This week alone, police have issued eight infringements. The message is obviously not getting through to people.

"We're in a delicate stage at the moment and we need people to abide by the rules."

Health Department data shows a spike in arrivals by road and air into the NT since June 15.

The infringement penalty for an individual is $1099 and $5495 for a business.

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