MA S1061

Raises the age of criminal majority in Massachusetts from 18 to 21 in phases: to 19 initially, then to 20 on July 1, 2028, and to 21 on July 1, 2030

Extends juvenile court jurisdiction so that individuals who commit offenses before reaching the age of criminal majority are processed through the juvenile justice system rather than adult criminal courts

Prohibits housing juvenile offenders in adult Department of Correction facilities, including MCI-Cedar Junction, until they reach age 21

Extends maximum probation and commitment periods for juvenile offenders to align with the raised age thresholds, allowing supervision up to age 23 in certain cases

Amends numerous statutes across drug offenses, sexual offenses, weapons charges, and harassment prevention to replace references to "18 years of age" with "the age of criminal majority"