Management at a popular hotel run by Australia's largest hotel group has been directing staff to segregate Aboriginal people into inferior rooms while charging them the same price as other guests, an investigation by ABC's Background Briefing has revealed.

Key points: The ABC obtains an email instructing staff to put people coming from "the communities" into special rooms

The ABC obtains an email instructing staff to put people coming from "the communities" into special rooms When two groups make identical bookings, the Aboriginal group receives a room in an inferior condition

When two groups make identical bookings, the Aboriginal group receives a room in an inferior condition Accor and the hotel's manager deny racially profiling guests

Employees at the Ibis Styles Alice Springs Oasis were instructed to direct guests from the communities — a local expression describing Aboriginal people from out of town — into one of six designated rooms.

One staff member, who disclosed details of the practice under the condition they were not named, told the ABC they witnessed it occur on hundreds of occasions.

"It was pretty much standard," the whistleblower explained.

The instructions to racially profile guests were given in an email sent to Ibis Styles Alice Springs staff last June.

"Just to keep everyone in the loop we are now only putting hospital linen into rooms 85 to 90," the email read.

"These rooms are to be referred to as community rooms and we will try to limit them to just that, those coming from the communities.

"Reception ladies, please use a touch of initiative and allocate accordingly on arrival."

Photos show a chicken bone, stained linen and a previous guest's clothing left inside one of the rooms at the Ibis Styles hotel. ( ABC: Hamish Harty & Oliver Gordon )

But the whistleblower said it was not just guests from the communities who were affected.

"You're looking at people who were notable or who were doing charity work or anything like that, who just because they appeared Aboriginal, were being given worse rooms that you wouldn't put anyone else into at all," the whistleblower said.

Inferior rooms for the same price

The ABC's Background Briefing arranged two identical bookings with the Ibis Styles Hotel earlier this year to test the whistleblower's description of what was happening.

The only difference in the two groups who arrived at the hotel was that one was Indigenous and one was not. Both groups were charged the same $129 price tag for their rooms.

Podcast Background Briefing The Black and White hotel A big name hotel has been racially segregating guests, and our undercover recordings captured it. Would you pay $129 for a room with dirty sheets, chicken bones and broken glass on the floor? About

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But the two rooms the groups received could not have been more different.

Undercover recordings of the Aboriginal guests checking in captured the group being assigned to room 86, which was one of the community rooms referred to in the leaked email.

"The floor still was dirty," said Gloriana, one of the women in the Indigenous group.

"I went in the bathroom and saw chicken bones inside there [on the floor]. And some woman's skirt was in there."

Inside room 86, the ABC found stained sheets and towels, as well as clothing belonging to former guests.

There was broken glass and rubbish in the patio area, dried liquids on the windows and walls, a stale smell in the air and exposed wires around the skirting of the room.

The room assigned to the non-Aboriginal group had none of the issues that were found in room 86.

Owners and management respond

Accor is the largest operator of hotels in Australia, and the fourth-largest operator in the world.

Staff were instructed to use "initiative" and place people from Aboriginal communities into one of five designated rooms. ( ABC: Hamish Harty )

It is the parent company of Ibis, as well as hotel brands including Movenpick, Novotel, Sofitel, Adagio, Mercure, The Sebel and Mantra.

"Accor is unaware of any complaints from staff or guests of this nature," said an Accor spokesperson in a statement issued to the ABC.

"The hotel welcomes and embraces guests from all backgrounds and cultures that reflects their diverse workforce, which includes 31 per cent Indigenous employees."

Jo McKenzie, a manager of the Ibis Styles in Alice Springs, was cced on the email instructing staff on the policy.

"We have two room types — being standard rooms and superior rooms — and we allocate on how people book," she said when contacted by the ABC.

Ms McKenzie denied the hotel allocated Aboriginal people to specific rooms.

Federal Indigenous Affairs Minister Nigel Scullion has responded to the ABC's story, describing it as "very concerning".

"It's very difficult to know that you've been the victim if you weren't aware that you've been put in the room on the basis of your ethnicity, because you wouldn't know that," he said.

Senator Scullion added that he would be having a close look at this particular case.

"If the facts you indicate are correct, then that is a very serious matter and it will be looked into," he said.

The 'Bermuda Triangle of unreported racism'

Sophie Trevitt, a lawyer with the North Australian Aboriginal Justice Agency, said clients told her that the practice of separating Aboriginal guests was happening across the NT.

"It's effectively a form of segregation within hotels and hostels," she said, adding that it was common knowledge for many in the Indigenous community of the Northern Territory.

Kamal Farouque, a discrimination lawyer in Melbourne, said the majority of race discrimination went unreported.

"I think there is a Bermuda Triangle of unreported racism," he said.

Mr Farouque said that in cases of individual race discrimination, payouts were low and the process was arduous, which discouraged complainants from pursuing a formal complaint with authorities.

The outside of rooms at the Ibis Styles in Alice Springs ( ABC: Hamish Harty )

"It's very much an individual complaint matter," he said.

"It's about their particular facts and circumstances, which are at issue in the case, and so the prospect of achieving a broader social outcome is quite limited."

The Racial Discrimination Commission of the Northern Territory said it was doing all that it could.

"We do what we can within the framework that we operate," commissioner Sally Sievers said.

"The formal scheme under the Anti-Discrimination Act is that we need a complaint from a person who is directly affected by the discrimination."

Commissioner Sievers explained that in the case of the Ibis Styles, warning from the whistleblower would only be regarded as a tip-off, and without a formal complaint from someone directly affected by discrimination, the commission was unable to pursue the matter further.