The Supreme Court officially legalized machine guns in Garland v. Cargill

Six Republican justices on Friday issued a ruling that effectively legalized civilian ownership of automatic weapons. All three Democrats on the court dissented.

The Court’s Decision Garland v. Cargill It involves bump stocks, a device that allows ordinary semi-automatic weapons to fire automatically, and ordinary semi-automatic weapons can legally have such devices, just like machine guns designed for this purpose. Bump stocks place the trigger of a semi-automatic gun against the shooter’s finger, repeatedly “bumping” the trigger and causing the gun to fire rapidly.

A semiautomatic weapon is a firearm that fires a round, chambers it or otherwise prepares it for another round, but does not fire a second round until the shooter pulls the trigger a second time. An automatic weapon, by contrast, fires a continuous stream of rounds.

As Justice Sonia Sotomayor noted in her dissent, the Trump administration decided to ban bump stocks after the 2017 shooting at a Las Vegas music festival. 58 people were killed and more than 500 were injured in a few minutes.The gunman used a bump stock to kill so many people in a short period of time.

1986 Law Owning a “machine gun” is a crime. The Trump administration has deemed the law broad enough to cover bump stocks. The law defines a “machine gun” as “any weapon capable of automatic discharge, designed to discharge, or capable of being readily resumed from discharge without manual reloading, by a single pull of the trigger.”

To be fair, the law is pretty vague. The lower court People are divided over whether it can be interpreted as the Trump administration.

Some courts have held that the phrase “single function of the trigger” should be understood to mean, as one court put it, “From the shooter’s perspective, pulling the trigger once” Thus, a semiautomatic weapon with a bump stock is considered a machine gun because “the shooter pulls the trigger once with her finger, and as long as she keeps her finger still, this action produces a continuous stream of shots through the operation of the bump stock.”

Sotomayor, writing for the court’s Democratic minority, interpreted the statute this way. In her words, “Machine guns don’t fire on their own. The important question under this statute is How can one dismiss it?”

Another plausible reading of the statute is whether the trigger itself moves back and forth each time a bullet is fired. Justice Clarence Thomas, writing for the court’s Republicans, said: Hold this viewarguing that “what a bump stock does is speed up the rate of fire by firing these different ‘functions’ of the trigger in rapid succession.”

Both results can also be supported by Competition Rules Provide guidance on how to interpret regulations.

Although Thomas did not cite the rule in his opinion, some lower courts have applied the “leniency rule” to justify decisions in favor of bump stocks. Generally, the rule states that when a criminal law is ambiguous, the ambiguity should be resolved in favor of the defendant.

Another rule, known as the “presumption of invalidity,” goes in the other direction. As the Supreme Court said in Emily and Caroline (1824), courts should avoid reading laws in a way that “renders them in a great degree of nullity and renders them in the easiest possible manner for the violators of their provisions” (“nullity” means that the law is ineffective or incapable of operation).

Sotomayor argued in her opinion that this presumption against invalidity favors her reading of the statute because Thomas’ reading would effectively eliminate the ban on machine guns. As she wrote, “Anyone who shoots an AR-15 rifle equipped with a bump stock can fire at a rate of 400 to 800 rounds per minute with just one pull of the trigger.”

So, who is right? The honest answer is that both possible readings of the statute are equally permissible, which explains why the lower courts disagreed. Cargill What is exposed is that not every question of statutory interpretation has a clear answer and judges can often choose which outcome they want.

So the six Republicans (whose party generally supports gun rights, despite the Trump administration’s actions on bump stocks) chose the outcome that was consistent with their party’s pro-gun stance. Meanwhile, the Democratic justices chose the outcome that was consistent with their party’s stance on guns.