Days later Ms Lasu and Ms Muranga felt sick but carried on working, socialising and visiting restaurants and cocktail bars while waiting for their test results - which came back positive.
Police also claim the crime syndicate is allegedly involved in the theft and transport of luxury items between capital cities.
Police were forced to use mobile phone data and bank transactions from the group to ensure they got a full picture of their movements around Brisbane and Logan, the Courier Mail reported.
"It's confusing, I do apologise", chief health officer Dr Jeannette Young said while explaining the freaky link.
Health authorities will spend the weekend considering further restrictions for millions of Victorians after 627 new cases on Friday, the second-highest single daily spike after the record set on Thursday.
Lasu made a decision to co-operate later in the day, according to police.
Both women were on Wednesday night fined $4000 for making false declarations on their border paperwork, along with another travel companion, who is awaiting her COVID-19 test results.
Police responding to a noise complaint busted up the party, removed them all from the rental property and handed out more than $30,000 in fines.
According to The Australian, the two teens are under investigation over the alleged attempted theft of designer handbags from a high-end Melbourne store, and it is suspected they travelled to Victoria intentionally to do this.
"These are people who deliberately went about doing the right thing".
They have been praised for choosing to self isolate at home upon returning to Queensland, limiting their risk of contributing to community transmission.
Police Commissioner Katarina Carroll said additional police resources have been put in place to help manage traffic at the border.
"They went to extraordinary lengths to be deceitful and deceptive and ... that has what has put the community at risk", she said.
'This is actively so to send out a message that we will not endure this behaviour at our borders'.
The mother, who is in hotel quarantine as a close contact, said her daughter's friend had been in Melbourne.
The three are in quarantine now and are due to appear in the Brisbane Magistrates Court on September 28.
All three remain in quarantine.