The top court in Massachusetts on Tuesday struck down a state law that banned civilians from possessing stun guns, saying the law violated the U.S. Constitution's Second Amendment, which protects Americans' right to bear arms.

The Massachusetts Supreme Judicial Court ruled in the case of a man who was criminally charged for possessing a stun gun, holding that such weapons constitute "arms" protected by the Second Amendment.

"Therefore, under the Second Amendment, the possession of stun guns may be regulated, but not absolutely banned," Chief Justice Ralph Gants wrote for the 6-0 court.