There is more of an emphasis on support and rehabilitation for those who progress through the Youth Court, which has its own special Judges. Orders made in the Youth Court are not criminal convictions.
However, people aged 16 and younger who are charged with the most serious crimes, such as murder or manslaughter, have their cases referred to the High Court.
Mr Little said that was an important safeguard, and could be extended.
"It may well be, depending on what comes out of the investigation, that you add a few more serious crimes to that list."
A spokesman for Ms Adams said the possibility of raising the age of referrals to the Youth Court was "something that's raised with her from time to time".
"She's asked Justice officials for some analysis on the matter. But she hasn't made any decisions and is keeping an open mind."
The Government has a "better public services" goal of cutting the rate of court appearances by 14 to 16-year-olds by 25 per cent by June 2017, and other countries deal with 17-year-olds through youth courts.