The UK Foreign Office has confirmed Michaella McCollum Connolly and Melissa Reid could benefit from an existing prisoner transfer agreement between the UK and Peru if eligible.
The Ministry of Justice also confirmed that the country receiving the prisoner would have to pay the cost of them serving their sentence.
However, any prisoner seeking to serve their sentence in either Northern Ireland or Scotland would be required to apply to the prison service for that particular part of the UK.
A spokesman for the Northern Ireland Prison Service said Ms McCollum would need to make representation initially to the Peruvian authorities before the next stage of the transfer process could begin.
The two women are currently being held in Lima’s Virgen de Fatima prison which has a relatively small population of around 460 inmates.
Conditions are said to be harsh.
Rice is supplied free but the prisoners have to buy all of their own toiletries and other essentials including food other than rice.
Now that the women have pleaded guilty, their sentence is expected to be six years and eight months – compared to 15 years if they had contested the charges and were eventually found guilty.
According to Peru’s national prisons institute, 90 per cent of the 1,648 foreigners in the country’s prisons are either sentenced or awaiting trial for drug trafficking.
Quoted in a Daily Mail report last week Paola Andrade, who is in jail for attempted murder, said: “The girls look so young and innocent.
“I feel really bad for them because they seem so young,” she added.
“I can only imagine how horrible it must be to be incarcerated so far away from home and your family.”