Supreme Court could halt move toward leniency for children convicted of murder

WASHINGTON — The Supreme Court on Tuesday suggested it could halt what has been a gradual move toward more leniency for children who are convicted of murder.

In cases over more than a decade, the court has concluded that children should be treated differently from adults, in part because of their lack of maturity. But the court, which has become more conservative over the last few years, could decide not to go any further.

The justices on Tuesday were hearing a case about sentencing juveniles to life without parole. The court has previously said that should be rare, and the question before the justices has to do with what courts must do before deciding to impose a life without parole sentence on a juvenile.

The case the court was hearing Tuesday is the latest in a series of cases going back to 2005, when the court eliminated the death penalty for juveniles. Five years later, the court barred life-without-parole sentences for juveniles, except in cases where a juvenile has killed someone.

Then, in 2012, the justices in a 5-4 decision said juveniles who kill can’t automatically be sentenced to life with no chance of parole. A related decision four years later said those sentences should be reserved “for all but the rarest of juvenile offenders, those whose crimes reflect permanent incorrigibility.“

The justices are now being asked whether a juvenile has to be found to be “permanently incorrigible,“incapable of being rehabilitated, before being sentenced to life without parole.