MD HB1190

Prohibits convicting a person who was a child at the time of the offense of first-degree felony murder unless they were a "principal in the first degree" (the main actor or direct participant in the crime)

Defines "principal in the first degree" as a person who is the main actor in a crime or helps others commit a crime

Creates a retroactive review process allowing individuals convicted of first-degree felony murder on or before September 30, 2025, who were children at the time and not principals in the first degree, to file a motion for review of conviction while incarcerated or under supervision

Courts must hold a hearing to determine if the person could be found guilty under the new standard; if not, the court may vacate the conviction and grant a new trial or resentence on any merged conviction, but may not increase the sentence

Takes effect October 1, 2025