The US Court of Appeals for the First Circuit on Thursday held that a Massachusetts law banning the sale, transfer, or possession of an assault weapon is not unconstitutional under the Second Amendment to the US Constitution. This decision comes after Massachusetts resident, Joseph Capen, contended that he was planning on purchasing items covered by the law for purposes of self-defense.

Case file: https://fingfx.thomsonreuters.com/gfx/legaldocs/myvmjqrbdpr/04172027mass.pdf