District of columbia v heller 2008 decision July 8, 2019 16 32 64 128 District of columbia v heller 2008 5 4 decision The 2008 supreme court decision in district of columbia v heller was significant because it District of columbia v. heller (2008) District of columbia v. heller (2008) summary District of columbia v. heller District of columbia v. heller issue